Update files to eliminate php warning messages and some minor fixes.
An Update
Merge branch 'develop' into feature-fix-code-warnings
Updated the user edit page to remove the user and ACL cache for the edited user upon deletion of their access records, as well as adding a fallback to fetching the current access ID if the one it's attempting to fetch doesn't exist anymore (so it overrides the session variable holding the access ID after the cache has been cleared).
Updated the course edit page to deactivate clinical presentation objectives (MCC / non-hierarchical objectives) rather than deleting them the way it does with the hierarchical/curriculum objectives.
Removed extraneous logic from changes to course objectives.
Merge pull request #509 from EntradaProject/feature-fix-code-warnings

Doug fixed a number of PHP notices displayed which resulted from unset variables being referenced when error_reporting was set to E_ALL. Thanks Doug.
Refs #490, "Add Members" section for course groups is now visible in IE8.

I could see the code in "view source" in IE8, it just wasn't showing on the page. So I ran the HTML through the W3C validator and one of the validation issues was that the second column was never used; the table had a a <colgroup /> with 3 <col /> tags, but the first <td /> ALWAYS had a colspan of at least 2, so the second column essentially wasn't being used. Removing the unused column and decrementing all the colspans on that table fixed that issue.
Minor visual fixes and clean up to the objective set management interface.
Fixes bug where assignment comments were appearing to the wrong users.
Correction in spelling  for Events Module
Merge branch 'develop' of https://github.com/EntradaProject/entrada-1x into develop
Merge branch 'develop' into feature/community-templates