Fix mailchimp full form  #2710

Lets try this again.  Using drupal_render works.  I must've been bypassing something by going straight to the theme.
WIP convert to role-select overlay on cp users #2761

**Note: WIP Do not merge. Breaks manage members page**

#### Changes
* Remove old "add-admin" & "remove-admin" actions
* Consolidate API functions that generate table
* Add new "edit-membership" action
* Remove non-standard "user_id_load()" function in favor of user_load()
for menu item object loading
* Correct user-facing text: group members are "members", not "users".
Removed useless drupal_render #2710
@wip add options to edit membership form #2761
debug role add/revoke #2761
verify edit role workflow and add css style #2761
clean up code for review #2761
deny non-members access to add private comments #2558
comments #2558
standardize var names and end user text  #2761
#3002: Fix failing tets in Travis, due to missing SSL
Edited CSS to make sure embedded media fits the width of the column.#2827
Correcting CSS for header issues.#2819
Controlling the display of html boxes in the header because of issues with the secondary nav and search.#2819
follow up to review #2558
Corrected bg color on slideshow.#2817
Corrected iframe issue for multimedia.#2827
Adjusting header regions.#2819
Text alignment of secondary menu.#2819
Testing table header fix.#2819