Re-Add hidden-apps setting

Forward port from CM 10.2
PS3: Don't rename and incorporate changes from Devkota
PS4: Update German translation
PS5: Remove translations
PS7: Hide widgets from widget list
PS9: Remove debug output
PS11: Rebase

Change-Id: Ie06b288e22c2678fb09da1bf42d46922b8319e01
Add options to hide icon labels from drawer and homescreen

Forward port from CM 10.2

PS3: Fix typo
PS4: Rebase and global defaults
PS8: Rebase to head

Issue: There is already an Icon section in general, move both
       settings there or leave separate in their categories?

Change-Id: I90ae4d2357e5f45fa9261c4eaa0fcf287996e327