Fixes some editor actions.
Adds OpenApplication action.
Adds ImportProject action.
Adds Platform#getApplicationArguments() method.
New resources
Scene can be panned with 1 finger
Merge pull request #901 from RotaruDan/importZip

Import Mokap zip
Changes in images
Merge pull request #903 from anserran/master

Changes in images
Tabs widget.
Tabs widget skin style.
Tabs widget test.