jf: Fixes for virtual sdcard

 * Additional property triggers
 * Remove CWM "datamedia" hack from fstab

Change-Id: I5905f5ba9a2d21fec417184cb04cb077f7befc62
jf: Remove "discard" mount option

 * The new fstrim service handles this now to fix performance issues
   caused by using the mount option.

Change-Id: I3cae7a942d91d61f67892e1db4075335e01eca95
Merge branch 'cm-10.2' of github.com:CyanogenMod/android_device_samsung_jf-common into cm-10.2