GLMixer Code

Correct behavior for scaling and rotation tools in Mixing view when
sources have same coordinates. Improved Layout actions in mixing view
(snap to border of mixing circle).

BogFix snapshot keyboard event.

Added action to Merge All Workspaces content into the current one.

BugFix: correct behavior of mouse move event over the catalog view (do
not interrupt action in the view when mouse over catalog).

Improved display in mixing view for exclusive workspace mode.

BugFix in snapshot management and display. Fix bugs with persistent
selection of sources in standby.

BugFix snapshot interpolation angle.

Sable implementation of snapshot manager and snapshot view.

Make the mixing icons bigger.

Work in progress.. implementation of Snapshot View (working for Mixing
View).