Set claws-mail application icon
Set iceweasel and pidgin camouflage icons
Rename the preparation script that should be run as root
Activate the camouflage for the next session th the script
Set florence tray icon
Adapt gpgApplet tray icon
Render perparation script executable
Adapt gpgApplet tray icon
Merge branch 'bugfix/7325-task-list-icons' into feature/6342-update-camouflage-for-gnome3
Merge branch 'bugfix/7326-systray-icons' into feature/6342-update-camouflage-for-gnome3
Add a patch to test the new features with current greeter

This patch sould be dropen once a version of the greeter inculding it reaches Tails
Configure iceweasel camouflage
Remove launchers.

Closes https://labs.riseup.net/code/issues/7381.
Adapt gpgApplet tray icon
Actually update florence icon
Actually update volume icon
Add png icons for gpgApplet

For whatever reason the png version is used at applet initialisation even
though svg versions seems used when it updates its content.
Merge branch 'feature/7367-browser-camouflage' into feature/6342-update-camouflage-for-gnome3
Merge branch 'bugfix/7326-systray-icons' into feature/6342-update-camouflage-for-gnome3

Conflicts:
	config/chroot_local-includes/usr/local/sbin/tails-prepare-win8-theme
Merge branch 'bugfix/7381-remove-launchers' into feature/6342-update-camouflage-for-gnome3