Revert "lowmemorykiller: change adj and minfree values"

I think better not change it, let system decide lmk values itself :)

This reverts commit bcc5eb806ea1b07903b04b8f1385de3dbaabbadf.
Revert "various update to block"

This reverts commit c1daae89f7411e52edba09e70f723cebbf38278e.
build scripts: change toolchain path

* switch to linaro gcc 4.7.4 2013/05 from christopher83

Signed-off-by: Keff <funnykeff91@gmail.com>
sched: Improve scalability via 'CPU buddies'

Signed-off-by: Keff <funnykeff91@gmail.com>
sched: fix init NOHZ_IDLE flag

Signed-off-by: Keff <funnykeff91@gmail.com>
..fixes..

Signed-off-by: Keff <funnykeff91@gmail.com>