first attempt at docking trace controls
convert all control groups to dockable panels
add docking controls to view menu (to be able to hide/bring them back)
don't create vertical space between controls, put it at the bottom
Merge branch 'master' into docking-toolbars
merged with master, added maximum widget size to all control widgets
changed comparison to appropriately detect None
modified maximum hieght/widths for each widget, widgets are now disabled instead of hidden
removed size constants, used qtSizePolicy to determine size of each widget
Merge pull request #2 from mfarhan12/docking-toolbars

Docking toolbars
docking widgets will receive focus once they are re-enabled
Merge pull request #3 from mfarhan12/docking-toolbars

docking widgets will receive focus once they are re-enabled
Merge pull request #117 from wardi/docking-toolbars

Docking toolbars
merged with latest master