add lastModified timestamp to user profile
prevent race condition in lastModified test
verify that read doesn't update lastModified on a principal
Revert TravisCI build to Cassandra 1.2 manually
Bump Cassandra to 1.2.12 in the TravisCI configuration
Merge branch 'issue-718' of https://github.com/stuartf/Hilary into issue-718
(Release 3.0.0) Bump version
(Release 3.0.0) Remove shrinkwrap
Merge pull request #702 from stuartf/issue-702

Show lastModified time for a user
568 - Specialized autosuggest feed for finding principals to share content with
568 - Added canInteract validation on the createDiscusion, createContent and setContentPermissions API methods
better timezone validation
#568 - Follow-up

 * _.isEmpty in the appropriate places
 * cleaned up unit test
 * refactored documentation
Merge pull request #568 from simong/568-share-feed

Groups who are private and joinable show up in share feed, yet you cannot share with them
Better image preview processor

 * Thumbnail and wide images are converted to JPG (transparent pixels are set to white)
 * GIF images are converted to JPG
 * Other images retain their original format
Fixed bug in storing principal profile picture. We use  rather than  for multipart file objects.
Made convertToJPG an ImageUtil utility.
It is now being used for both content preview thumbnails as profile pictures.

When the user uploads his profilepicture, it will be converted to a plain JPG.
Add documentation for image uploading.
Merge remote-tracking branch 'stuartf/issue-726'
Use if statement instead of try/catch
#675 - Improved JSDoc