Bobtemplates.plone

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- Add svelte_app template including with custom-element (web-component) support
[MrTango]

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- Add tox as a dependency. Fixes 442.
[erral]

- Improved run_isort error handling
[MrTango]

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- Fix 436 remove index option in base.cfg
[MrTango]

- Fix 437 cleanup .gitignore file
[MrTango]

- Fix 432 Bare except in restapi_service
[MrTango]

----------------

- Create upgrade step profile directory. Fixes 434
[erral]

- Require coverage<5. Fixes 421
- Fix indexer subtemplate. Fixes 425
[erral]

- Require coverage<5 in travis configuration file. Fixes 421
[erral]

- Align template's setup.cfg to the projects one.
Especially raises the flake8 line-length to black default.
[thet]

- Update travis setup, use tox for all testing and linting of addon package, not code-analysis.
[MrTango]

- Update default Plone and Python version to 5.2.1 and 3.7 for addon template.
[MrTango]

- Add badges to addon README file.
[MrTango]

- Add collective.recipe.vscode to addon base.cfg, activated by default, we have a question to disable it.
[MrTango]

- Fix flake8 missing trailing comma, format call uses missing keyword, provides unused keyword.
[fulv]

- Improve generated package tox env, also run linting inside skeleton-tests.
[MrTango]

- Improve bobtemplate.plone tox output, it's now easier to read and find the errors.
[MrTango]

- Automatically fix isort issues after using addon template.
[MrTango]

- Improve buildout template, it's now using Plone release versions rather than buildouttesting.
[MrTango]

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- Fix flake8-plone-hasattr issue, space and unused import
[balavec]

- Disable extra requirements for theme addon
[balavec]

- Fix upgrade_step template, missing bob-file-extension and import
[MrTango]

- Fix upgrade_step by add missing directory attribute to UpgradeStep profile, upgrade_steps are no longer visible in addon control panel
[MrTango]

------------------

- Fix upgrade_step sub-template
[MrTango]