Detect drawable update.
Merge branch 'future' of github.com:wallix/redemption into future

Conflicts:
	utils/drawable.hpp
Method first_pixel of Drawable become public.
Added methods to compare tm structure.
Added methods to compare tm structure.
Improved methods to compare tm structure.
cleanup unnecessary files
fix mountpoint check in redemption.postinst
Merge branch 'future' of github.com:wallix/redemption into future
Fixed unit test for AES cbc encryption.
Merge branch 'future' of github.com:wallix/redemption into future
logical operators for timeval
fixes #7114: Bad color in 8-bits recorded RDP session.
Update sesman for service name and protocol conflict
Fixed vnc frame update buffer overflow.
Merge branch 'future' of github.com:wallix/redemption into future
Don't reset bitmap cache in session color remains unchanged.
Merge branch 'future' of https://github.com/wallix/redemption into future
fixes #7156: Fail over not working on a cluster of 2 targets.
Merge branch 'future' of github.com:wallix/redemption into future