[Android] Turns out some other class variables were able to be made private too in FileBrowser.java.

Removed the privacy level specifiers in the interface OnItemSelectedListener. public is implicit for any interface method.
[Android] Replace string .equals("") tests in conditionals with .isEmpty()
[Android] Clean up ConfigureFragment.java.

Call getResources directly.
Kill off parentActivity class variable. Absolutely pointless if it's used only in one method.

Fix up the atrocious line breaks.
[Android] Clean up InputModFragment.java

Replace parentActivity calls to getResources with just a direct call.
Replace hardcoded strings.
Remove pointless String.valueOf calls.
Remove the parentActivity. Again, this is totally unnecessary.
[Android] Tiny cleanup to InputFragment.java.

Mild side-cleanup to OptionsFragment.java. Purely minor.
Merge pull request #398 from 0002647302/master

This is cleanup after recent changes
[Android] Simplify display metrics retrieval in Config.java.
[Android] Kill off unnecessary getString calls.
Remove the git display from the main interface, It is debug