init: cleanup panic and coredump

* We should not have two "write apanic_console", or the phone always hang
after a panic.
* Coredump doesn't exists.

Change-Id: Idcbddd378ef36b5dcc1e49d27d69071486f68654
releasetools: don't wipe cache and dalvik-cache on install

Change-Id: I4178b83ec0f1cfcb0c5f1593389550b973fd5ac8
sepolicy: additional updates

Change-Id: I0b910c65aa2dc1286681e154fd1760ec7b558752
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2