Re-ver

====================

**Added:**

* Added AppImage activity
* ``rever.activities.gcloud.DeploytoGcloud`` now has an undo

**Changed:**

* `rever.activities.gcloud.DeploytoGCloud` now awaits the deployment of the new image.
If the deployment fails then it tries 2 more times, then errors.

**Fixed:**

* Fixes for xonsh >0.9.18

**Authors:**

* Anthony Scopatz
* Christopher J. Wright
* a
* Melissa Weber Mendonça
* Bas Nijholt

====================

**Changed:**

* ``activities.gcloud.DeploytoGCloud`` now supports docker hosts beyond ``docker.io``

**Authors:**

* Anthony Scopatz
* Christopher J. Wright
* Thomas Kluyver

====================

**Added:**

* The PyPI activity now includes the ability to sign source packages
if ``gpg`` is available with the ``$PYPI_SIGN`` variable.

**Changed:**

* ``$CHANGELOG_LATEST`` is now tracked if it is not in the ``$REVER_DIR``

**Authors:**

* Anthony Scopatz

====================

**Changed:**

* Certain autogenerated files now have only a single trailing newline.
This is for use with tools that expect files to have a single trailing
newline, such as ``pre-commit``.

**Authors:**

* Anthony Scopatz

====================

**Changed:**

* PyPI updated the HTML for listing maintainers.
This fixes the PyPI permissions check.

**Fixed:**

* ``rever.activities.push_tag`` now properly checks the capacity to push

**Authors:**

* Anthony Scopatz
* Christopher J. Wright

====================

**Changed:**

* Updates docker conda install to use latest miniconda install.

**Authors:**

* Anthony Scopatz
* Baptiste Mouginot