Extracted some stuff from ActivityBase to ActivityWithSlideMenu
fixed #281
cleanup
Merge branch 'unstable' into android-testing

* unstable:
  cleanup
  fixed #281
  Extracted some stuff from ActivityBase to ActivityWithSlideMenu
decode backgrounds at runtime
add OnLowMemory method and clear cache in it
Merge commit '36eed1f0ed6f50c460cb5c651b31da002dae122c' into unstable

* commit '36eed1f0ed6f50c460cb5c651b31da002dae122c':
  add OnLowMemory method and clear cache in it
load backgrounds with ImageLoader and preserve AR by cropping
fix maps
Merge branch 'unstable' into android-testing

* unstable:
  fix maps
  load backgrounds with ImageLoader and preserve AR by cropping
  add OnLowMemory method and clear cache in it
  decode backgrounds at runtime