Adds resources for the navigation drawer
First navigation drawer draft
Bugfix
Updated Gradle version.
Updates to the navigation drawer
Fixes #31
Added settings and help entries to the nav drawer (without functionality)
Adds Help action
Bugfix
Upgraded Gradle.
Adds navigation drawer header
Now a PreferenceActivity is launched when the corresponding item on the navigation drawer is shown
Beautify the navigation drawer
Improved the aesthetics of the navigation drawer
Lots of improvements and bugfixes
Sets global background
Tiny details
Toolbar is now an include-type layout
Bugfix.
Prepares SupportPreferenceFragment implementation