GC triggering performance optimizations

Copy the correct starting heap size at process init.
Interfaces to set GC/managed heap parameters.

Change-Id: I0154d1523c3cfdb1214ed0315193cbb24704351f
Profiles: add PROFILES_STATE_CHANGED_ACTION broadcast intent

Added a new broadcast intent to profiles manager (PROFILES_STATE_CHANGED_ACTION), for
notify an event when profiles are enabled or disabled.

Change-Id: If701b3be54157c23acdf74e1da658fbce335437e
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>