Update to include newest headers and library, tweak glue code to
work better with state saving and add support for config changes.
Change-Id: I4d27bd4a0f542f217efaec86cf4f219aca020426
Remove all duplicate platform files, i.e development/ndk/platforms/android-N now
only contains files that are introduced in API level 'N' and not found in level 'N-1'
(This makes it easier to manage independent platform release branches, and makes
platform additions trivial to examine and maintain).
Move samples that depends on features of API level 'N' into platforms/android-N/samples
+ update tests/run-all.sh accordingly
Change-Id: I04c4c67c6c674c1714d5812d461d0524a4f4cfd9
