Enable code coverage for GTM test suite in iOS 7.
Call gcov_flush at end of tests manually if GTMCodeCoverageApp is available to receive request.

DELTA=5  (5 added, 0 deleted, 0 changed)

git-svn-id: http://google-toolbox-for-mac.googlecode.com/svn/trunk@648 7dc7ac4e-7543-0410-b95c-c1676fc8e2a3