Fixed warnings about [NSApp delegate].
Fixed app_options not working in OS X 10.10 Yosemite.
ignore dirty submodules
Add _currentApp to store last app for app_options.
Merge pull request #38 from frank4565/develop

Fixed app_options not working in OS X 10.10 Yosemite and warnings about [NSApp delegate]
Merge pull request #39 from jakwings/submodules

Ignore dirty submodules (clean)