[apparmor] [PATCH 0/6] Fixes and improvements to the new libapparmor APIs

[Tyler Hicks]

This patch set builds upon current lp:apparmor plus the aa_policy_cache
regression tests that are pending review:

 https://lists.ubuntu.com/archives/apparmor/2015-March/007538.html

The first patch fixes a memory leak, found by valgrind, while running the
aa_policy_cache regression tests under valgrind.

The rest of the patches improve documentation and usability of the new APIs.
These changes were spurred after I used the new APIs to write the regression
tests.

Tyler