Merge pull request #16 from ucb-ist-drupal/develop

Fix openucb-254 bug: Notice: Undefined index: messages in ucberkeley_cas_init() (line 19
Makefile edits for 1.3
Add clean_urls=0 help. Disable cas.module version check.
update version
Improve overlay logic in hook_init
Update help info on logout behavior
Help on possible WSOD with libraries api
Correct branch in dev makefile
CHANGELOG prep for release
Merge pull request #18 from bwood/master

Update to cas 1.3