MoKeeLauncher: Improve performance when showing previews and cut down on lag.

Change-Id: I707fcf108fc508b1fb78f7dc3c57415d1eec5962
MoKeeLauncher: change show AppsCustomizeTabHost animator

Change-Id: I29c81c979dab32fd8ee647dbea73950c402bb0e8
MoKeeLauncher: fix display in show applist

Change-Id: Iffb409e8bfeda9bb4a749a479e2b956a68657097
MoKeeLauncher: fix return workspace alpha

Change-Id: I9e54e5c2df2404d6efdaaad14f3d0a9b7d7b790b
Launcher: Improve performance when showing previews and cut down…