fullscreen support for main window
Merge pull request #98 from niklasberglund/develop

Fullscreen support for main window (std. OS X full screen)
update macvim
#102 take only visible buffers into account
Merge branch 'master' into develop
close #102: Merge branch 'bugfix' into develop
#102 update working dir when

- tab is hidden
- tabs are updated
bump version