Small fixes to Dirty Tweaks

Change-Id: I6784af7b6592492e17d32b88ca65b7a98527bed8
Diable changelog / general fixes
As of right now the changelog is seriously out of date and does no good to put out this info.

Thanks to deadman96385 aka Sean for the idea to disable items that really don't do shit

Change-Id: I210c5462b4a0d5098c79e4273e3817a13a6a11e9
Move LCD density from build.prop to it's own category

Thanks AICP/LorDClockaN

Change-Id: If95d4efda33f76b63ca2bd490d468868b67e76e9