Switch to WebKit 4.0 API
Add an empty toolbar to the chart tab
Add connection view changer buttons (aspects/antiscia)
Merge pull request #57 from gergelypolonkai/chart-manipulation

Add chart toolbar with aspects/antiscia switcher buttons
Change Ctrl to Primary in accels

This is somewhat a revert for 3ad29b3f, which also changed Primary to
Ctrl.
Merge branch 'master' into aspect-table