Jupyter-contrib-nbextensions

-----

- Remove dependency on latex_envs [1603](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1603)
- Remove scripts entry in setup.py [1612](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1612)
- Fix typos [1604](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1604)

-----
- Fix CI
- Add license.txt in setup.cfg
- Fix Readme

-----

- Replace `template_path` with `extra_template_paths` [1532](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1532). Nbconvert 6.0 replaced `template_path` with `extra_template_paths` (see https://nbconvert.readthedocs.io/en/latest/changelog.html#significant-changes). This change in Nbconvert 6.0 causes errors in jupyter_latex_envs and in jupyter_contrib_nbextensions (see [1529](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/1529).
- Update `install_requires` list in `setup.py` with 'nbconvert >=6.0'
- Drop support for python < 3.6
- [toc2] fix for disappearing sidebar in static html_toc export [1548](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1548)
- Fix Extensions Not Loading for Large Notebooks [1499](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1499)
- Support non-live notebook such as nbconvert output [1535](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1535)

-----

- Fix for navigation hotkeys [1378](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1378)
- `gist_it` Making github endpoint configurable to support publishing gists to Github Enterprise [1364](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1364)
- Fix treefilter [1359](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1359)
- Enable ruler extension in editor [1296](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1296)
- Several spelling fixes
- Configure `code_prettify` extension to load custom yapf styles by default [1376](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1376)

Travis/AppVeyor testing is currently broken due to outdated configuration. Will hopefully be working in 0.5.2 again.

-----

Repo-level stuff:

- Added `CONTRIBUTING.md`
(fixes [1224](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/1224))
[1225](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1225)
[consideratio](https://github.com/consideratio)
- [ci] allow lint failure on travis
[1228](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1228)
[jcb91](https://github.com/jcb91)
- Fix some travis warnings and errors
[1251](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1251)
[juhasch](https://github.com/juhasch)
- Remove OSX travis run (OSX still supported, but travis run kept failing without being any significant difference to linux run)
[1253](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1253)
[juhasch/fix](https://github.com/juhasch/fix)
- fix travis for py27
[1265](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1265)
[jcb91](https://github.com/jcb91)

New features and bugfixes:

- `load_tex_macros` __new nbextension added!__
[1257](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1257)
[ketch](https://github.com/ketch)
- `cell_filter` __new nbextension added!__
[1240](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1240)
[benelot](https://github.com/benelot)
- `execution_dependencies` __new nbextension added!__
[1213](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1213)
[benelot](https://github.com/benelot)
- `isort` __new nbextension added!__
First implementation based on code_prettify
[1204](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1204)
[benjaminabel](https://github.com/benjaminabel)
- require newer `jupyter_highlight_selected_word`
[1270](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1270)
[jcb91](https://github.com/jcb91)
- Fix for long button labels in `code_prettify` and variants
[1268](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1268)
[jfbercher](https://github.com/jfbercher)
- Bugfix for `collapsible_headings` key bindings conflict
[1264](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1264)
[rhilenova](https://github.com/rhilenova)
- `kernel_exec_on_cells`,
make shift-click on button autoformat all cells
[1219](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1219)
[jcb91](https://github.com/jcb91)
- `scroll_down` ensure output will scroll down in new cells
[1227](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1227)
[cjld](https://github.com/cjld)
- `init_cell` Warning dialog now always relevant, fixes [1223](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/1223). [#1226](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1226) [consideratio](https://github.com/consideratio)
- `gist_it`, Fixed a minor spelling mistake in the documentation
[1222](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1222)
[swedishmike](https://github.com/swedishmike)
- `toc2`
* fix css rule for overriding wrapper color
[1255](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1255)
[jcb91](https://github.com/jcb91)
* allow configurable basenumber
[1252](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1252)
[jfbercher](https://github.com/jfbercher)
* Initialize toc2 button after cfg is loaded / fix [1249](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/1249).
[1250](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1250)
[jfbercher](https://github.com/jfbercher)
* use unaltered notebook metadata in template
[1141](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1141)
[jcb91](https://github.com/jcb91)
- `exercise` & `exercise2`, Reworking to fix
[1079](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/1079)
[1206](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1206)
[jcb91](https://github.com/jcb91)
- `snippets` use `base_url`
[1212](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1212)
[juhasch](https://github.com/juhasch)
- Add preprocessor to embed images into a notebook
[1067](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1067)
[juhasch](https://github.com/juhasch)
- `init_cell`
* Warning dialog now always relevant, fixes [1223](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/1223). [#1226](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1226) [consideratio](https://github.com/consideratio)
- Add preprocessor to embed images into a notebook
[1067](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1067)
[juhasch](https://github.com/juhasch)
- Fixed conflicts in collapsible_headings if keys are rebound.
[rhilenova](https://github.com/rhilenova)

-----

Repo-level stuff:

- Require newer version of
[`jupyter_nbextensions_configurator`](https://github.com/jupyter-contrib/jupyter_nbextensions_configurator)
[1197](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1197)
[jcb91](https://github.com/jcb91)
- Remove version-pinning from lxml dependency
[1174](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1174)
[codypiersall](https://github.com/codypiersall)
- Use `requirejs` vs. `require`, to align with notebook usage
[1165](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1165)
[gnestor](https://github.com/gnestor)
- `tests` specify exceptions (new flake8 moan)
[1143](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1143)
[jcb91](https://github.com/jcb91)
- move `js_highlight.py` into nbconvert_support, specify exception type
[1140](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1140)
[jcb91](https://github.com/jcb91)
- docs updates
[1200](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1200),
[1201](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1201)
[jcb91](https://github.com/jcb91)

New features and bugfixes:

- `livemdpreview` __new nbextension added!__
[1155](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1155)
[jcb91](https://github.com/jcb91)
- `nbTranslate`
* Typos + readability improvements
[1191](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1191)
[adyavanapalli](https://github.com/adyavanapalli),
* Fix typo and revise text for better readability
[1190](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1190)
[adyavanapalli](https://github.com/adyavanapalli),
* use traitlets > 4.1 tag API
[1138](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1138)
[jcb91](https://github.com/jcb91)
- `collapsible_headings`
* indent heading collapse controls by level
[1183](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1183)
[jcb91](https://github.com/jcb91)
* patch TextCell.set_text to catch more changes
[1184](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1184)
[jcb91](https://github.com/jcb91)
* link complete font-awesome css from cdn, not just some fontfaces
[1179](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1179)
[jcb91](https://github.com/jcb91)
- `toc2`
* Add a 'download as HTML with toc' for Jupyter >= 5.1
[1182](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1182)
[jfbercher](https://github.com/jfbercher)
* only set notebook dirty if metadata item changed
[1178](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1178)
[jcb91](https://github.com/jcb91)
* Bugfix undefined title_sidebar
[1175](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1175)
[jfbercher](https://github.com/jfbercher)
* move config into toc2.js
[1167](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1167)
[jcb91](https://github.com/jcb91)
* configurable titles; dialog-alterable metadata settings
[1124](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1124)
[jcb91](https://github.com/jcb91)
* remove deprecated st var from template
[1199](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1199)
[jcb91](https://github.com/jcb91)
* [toc2] link complete font-awesome css from cdn
[1198](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1198)
[jcb91](https://github.com/jcb91)
- `scroll_down` fix notebook `5.x` compatibility
[1181](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1181)
[jcb91](https://github.com/jcb91)
- `exercise,exercise2` use bootstrap hidden class
rather than jquery show/hide, in order to play nicely with collapsible_headings.
fixes [990](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/issues/990)
[1169](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1169)
[jcb91](https://github.com/jcb91)
- `runtools` don't alter selection when running cells
[1145](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1145)
[jcb91](https://github.com/jcb91)
- `ExecuteTime` add preprocessor to execute notebook updating timing metadata
[1139](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1139)
[jcb91](https://github.com/jcb91)
- `snippets` Updated README
[1150](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1150)
[chuaxr](https://github.com/chuaxr)
- `code_prettify` Update `code_prettify.yaml`
[1162](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1162)
[fehiepsi](https://github.com/fehiepsi)