Fetch activity feed for personal dashboards and render activities for content uploads, content sharing and content comments
Check for user/group image in all templates, Add view for visibility updates of content and groups, creating a group, adding a member to a group and general updates to a group.
Fix for sharecontent widget, Add images for users in the activity feed and remove dummy images.
Add levels to comments, indicate when there are multiple actors.
Add limit of 10 to activity stream, add some documentation.
Improved sorting for comments in activities
Add show more button to comment activity
Add the last (hopefully) permutation to a comment activity
Do check for actor url. Anonymous users won't have a URL to go to.
Switch the 'add member to group' activity from showing the group to showing the people added to the group, make the macros that render that available to all macro's by pulling them out into separate macros.
Implement infinite scrolling into the activity feed, add a 'no results' message.
(Issue Hilary#303) Autosuggest for users and groups

* Changed general searches to use 'resourceTypes' param
* Changed autosuggest module to use 'data' param in $.getJSON
* Made auto-suggest for topnav search use includeIndirect=false
* Minor code-style house-cleaning
* Changed autosuggest for topnav to use $.ajax 'data' param
(Issue Hilary#303) Fixed up permissions and participants templates to account for both user and group objects
Hook up recaptcha configuration in the UI, visual tweaks to the view switcher in lists.
Brought in the documentviewer
Added z-index:0 to the document viewer

The document viewer top bar was appearing on top
on the overlays. This small CSS fix takes care
of that.
Cleaned up documentviewer dependency

Stripped out jquery and jquery UI as those are already in the page.
This reduces the size of the documentviewer dependency by about ~100KB

Addressed an issue in api.util.hideOnClickout which was using the wrong
jQuery variable.
Added jquery as a dependency to oae.api.content.js
Merge pull request #2570 from bp323/activities

Activities
(Paris2013) Initial work for PP images in activities.