configure: allow GIT_REV to be read from VERSION file
needed for building outside of a git repo
release-source script needs bash
on some systems /bin/sh is a simplistic posix shell
artwork: add "Add art" button to video artwork selection dialog
Merge pull request #2163 from Montellese/artwork_add

add "Add art" button to video artwork selection dialog
fix null ptr dereference of GUIDialogCache. fixes #14065.
fixes #14030, osx x86_64 would crash on a throw, trying to open tiffs, basically cximage was referencing internal tiff headers instead of system headers, opps
[osx/ios] bump libtiff from 3.8.2 to 3.9.7 and configure without X11
changed, remove wrapping from cximage, obsolete with new Imagefactory
Merge pull request #1934 from wsnipex/gitrev

allow gitrev to be read from file
AE: introduce force flag into interface
AE: (Alsa) Wait for at least one audio output device when starting up for max 10 seconds
AE: Fix suspend / resume with alsa - (Warning: Race condition AddPackets still to fix)
AE: Enable SoftSuspend on Linux (Stop h0gg1ng the sound device)
AE: Wait until we are in a safe state before further deinitializing the sink (care for deadlocks)
AE: no chance for the context switcher (this time)