Fix action button behaviour.

Make sure action panel is visible when pressing 'Actions'. Previously it
opened the 'Users' panel under those conditions:
- Press 'Users'
- Swipe out drawer
- Press 'Actions'

Root cause was that after openDrawer() isDrawerOpen() still returns
false, as it'll only return true after the animation finished.
Merge pull request #102 from maniac103/fix-action-button

Fix action button behaviour.