Packages improvements

- Added multi-arch support
- Various packages improvement merging debian packages and
  following debian policy

Signed-off-by: Fabio Fantoni <fabio.fantoni@m2r.biz>
Tiling on monitors with portrait orientation
Save window size when maximizing with top edge
Fixed WM/CSD borders duplications - imported Jasper's work (https://bugzilla.gnome.org/show_bug.cgi?id=705766) plus additional fixes from Mutter
Fixed mistake in previous commit
Initial xinput2 stuff
Scale frame/theme construction elements
Revert "Initial xinput2 stuff"

This reverts commit e69ed40c87ee4c443c5f7905402e7d7109b11a3d.
Merge pull request #134 from FritzGruetz/master

Tiling on monitors with portrait orientation
Merge pull request #125 from Fantu/master

Packages improvements, including multi-arch support
Add mousewheel scroll actions to titlebar: shade, and adjust opacity.
Add keybindings for window opacity adjustment
2.2.0
Added gobject-introspection to build-depends
display: Add simple signals for reacting to mouse wheel events
Fix collisions between window mousewheel events (opacity) and global mouse
wheel zoom
Merge pull request #143 from mtwebster/zoom-zoom

display: Add simple signals for reacting to mouse wheel events
2.2.1
Remove some logging
Adjust to API changes in COGL >= 1.7.0