https://salsa.debian.org/hypra-team/hypra-desktop-environnement/issues/226

This brings back strings that were commentd-out during the rebase.

We don't want to introduce behavioral changes here yet, so revert
changes doing so.

This reverts commit f467d0b0.

Restore only providing 3 specific zoom targets, as well as settings
compatibility with previous Compiz version in Jessie by reverting the
setting renames and value meaning.

This unfortunately also reverts the more user-friendly values, but this
is needed to preserve compatibility until we find a proper migration
path.

Manually import changes to the French translation from stretch-master's
debian/patches/07_translation-fr, and fix a few translations, and add a
few missing ones.

Samuel Thibault authored Nov 07, 2018 and Colomban Wendling committed May 07, 2019

Fix ezoom when randr is in clone mode

- This adds CompScreenImpl::outputDev which returns the CompOutput corresponding
  to a CompOutput id, but special-case id ~0 and return the fullscreen CompOutput
  in that case.
- This makes ezoom use it instead of indexing within screen->outputDevs.
- This makes out < 0 a valid output
- This redirect zooms.at () to use ZoomArea 0 when out < 0 (fullscreen output case).

fixes bug: https://launchpad.net/bugs/1780246

Sync x and y translation to get straight movement instead of a ping-pong
effect.

This backports the following patches:
* 04_focuspoll
* 14_parent_loop
* 15_atspi_ref_fix
* 05_focuspoll_changes
* 15_atspi_ref_fix_2
* 06_ezoom_changes
* 06_ezoom_changes_minmax
* 06_ezoom_changes_specific
* 06_ezoom_changes_startup

https://redmine.hypra.fr/issues/543

Alpha is pre-multiplied, so fix the algorithm to properly compute the
alpha values.  This requires un-multiplying the alpha before performing
color transformations, and multiply it again in the output.

This fixes alpha and artifacts on semitransparent pixels.

This is useful to control which filter is enabled at startup, and
choose whether to have cumulative mode or a specific filter.

Moreover, cumulative mode is interesting only when a specific set of
filters was selected, as not all filters play well together.

This reverts commit 15aee719.