Main Feature updates:
Allow for Install Profiles access to app installation, during profile installation
Sites may now vote and view votes for apps
Full commit list
Fixed notice thrown by Apps that lack description
Issue #1484300 by populist: Fixed Change to empty() from ! for manifest checking.
Next step in drush install. Everything done except the actual download/install.
Issue #1479302 by populist: Added Batch process enabling of apps, especially ones with demo content, during install profile process.
Issue #1431992 by populist, randallknutson: Added Fix Installation Profile additions format.
Issue #1479194 by populist: Fixed Handle Cases Where All Apps Are Already Downloaded.
Added a check for existing in the images processing
#1461882: Warning messages on get_headers Changed get_headers call to drupal_http_request for cross platform compatability.
Removed average rating text from teaser and featured views as it doesnt fit properly
Fixed const namespacing
Issue #1419138 by randallknutson: Document different ways to install.
reworked the caching a bit
Issue #1403030 by TomDude48, randallknutson: Fixed When requesting the manifest, caching is not used which caused dramatically decreased performance.
#1407030: Consume Ratings provided my server, and post back ratings - Add rating system for use with apps and app server
#1423194: Fix Apps "documentation" text - Added README file
issue #1422254 - Fix dependency check causing all installs to fail.
issue #1422086 - Fix continue when apps server is unavailable.
issue #1417916 by randallknutson: Fix foreach error during install profile installation.