Delete CAVEATS / fix spelling.

Change-Id: I0ed504271b7c2e4434d0d5f53bc10335c8cf7b5b
Create bionic unit test library for use with CTS.

Bug: 8291716

Change-Id: I46b749348456fae7892eecca6b44aef51a0e4747

Conflicts:
	tests/Android.mk
Change hard-coded directory.

The tests are using /data/data which is not accessible to a non-root
user. Change this to /data/local/tmp which is accessible to all users.

Bug: 8291716

Change-Id: I66476bbbaf5d1dc0c103863abf9219405f06a85b

Conflicts:
	tests/statvfs_test.cpp