Revert "d2: Limit MDP composition to 3 layers"

fixed in this commit http://review.cyanogenmod.org/#/c/29744/

This reverts commit c91ae499cf5ace42dcd0044736207d5161a58e07

Change-Id: I7ac5a74af96142125d50f9b241efc2dd9cc5be01
d2: enabled home button unlock option

Change-Id: I05eb397a17f96ad6093fdee18c632537dbc2392b
Merge "d2: enabled home button unlock option" into cm-10.1
d2: re-enable Trebuchet overlays

config_workspaceRows and config_workspaceColumns are now
default_cell_count_y and default_cell_count_x respectively

Change-Id: I75e3b8dc93f1b652cf2fc6b027479ccdb310eecb
Merge "d2: re-enable Trebuchet overlays" into cm-10.1
Merge pull request #3 from CyanogenMod/cm-10.1

Cm 10.1