Revert "Revert to GCC 4.6"

This reverts commit dcf3fb334ca6a49276772d52af63a55b73b0e170.
Build DSPManager

Needed for a feature to work correctly
build: fix target header overlay

LOCAL_C_INCLUDES as defined by the makefile should be put AFTER
the overlay includes so the overlay always takes precedence.

Change-Id: I489b2aab6dbacd9122d834f85e07b63ed1271f07
Merge tag 'android-4.3_r2.2' of https://android.googlesource.com/platform/build into cm-10.2

Android 4.3 release 2.2
fixes for GCC 4.8 and 4.9

Conflicts:
	core/combo/TARGET_linux-arm.mk
Merge tag 'android-4.3_r3' into HEAD

Android 4.3 release 3.0

Signed-off-by: Evan Anderson <evan1124@gmail.com>

Conflicts:
	core/build_id.mk

Change-Id: I30a8d02c22a4fb02f10b2b238129d94d706fce22
envsetup: add a helper to fix "out/target/common" not being really common

* out/target/common isn't really common, and if you do
  back to back builds for multiple devices, that is noticable.
* Use out/target/common-$device instead, and link the appropriate
  dir to out/target/common every time lunch() is run, if
  CM_FIXUP_COMMON_OUT is set.
* Refer https://groups.google.com/forum/#!topic/android-building/ispbOgzoyg8
  for more info.

Change-Id: I11e7df0e68e2a60ce32576f06397d60fc9465b60

Conflicts:
	envsetup.sh