zram & zsmalloc: update to kk_3.5_rb1.19 version
Update defconfig for zRAM
ext4: fixed ext4 disk write performance regression
ARM: improve compiler's ability to optimize page tables
 use clear_page()/copy_page() in favor of memset()/memcpy() on whole page..
fs: add module_param to disable fsync
 android: logger: decrease log_main size
lowmemorykiller: Compact memory when killing processes
lowmemorykiller: Use asynchronous compaction