[Mac] Vertically align labels and single-line text entries
[Mac] Fix NRE when adding a widget to a dialog
Properly initialize scroll adjustments for widgets using custom scrolling
[GTK] Use the new api to enable support for retina icons
create global window pool for application
fix no accelerators for non-stock commands in WPF
add global command pool in WPF
[WPF] submenu behavior consistent with other platforms
Merge remote-tracking branch 'mono/master' into testing
Merge remote-tracking branch 'origin/testing' into testing