-Fixed bug in DriverDocumentsTab that would call showTranslations for a
selected sentence even if the sentence is selected and it's translations
are already shown (this created a sort of glitchy effect as the panel
was repainted with the same information every time).

-Fixed a bug in DriverDocumentsTab that, when iterating the cursor to
the right via the directional keys, the translations would not change
with the sentence change.

-ACTUALLY fixed the bug this time where the application would warn about
unsaved changes even if the document wasn't modified.

-The warn on quit now works with OS X's Menu > Quit or Command Q.
Merge remote-tracking branch 'origin/Andrew_McDonald' into Marc_Anonymouth
Pre merge commit
-Vertical resizing works again (sorry about that)
Merge remote-tracking branch 'origin/Andrew_McDonald' into Marc_Anonymouth
-Polished up the words to add/remove sizing so they are both equal in
height now.

-The anonymity bar percentage text now updates in real time (forgot to
put the call in with update()