Removed unused functionality 'share', removed unused views, removed deprecated 'removeRecord', updated and corrected user search in circles.
Also using ListOperations for spaces (fewer DB calls).
Using 'get' instead of 'find' when not retrieving complete model objects.
Adding correct link targets for recently published visualizations.
Using 'javascript:;' for links with no target yet: Will not produce a browser history entry and not disturb when returning to previous page by pressing the back button in the browser.
Using java 6 again for easier compatibility and to be sure to not have the multi-catch-statement bugs in production.
Upgraded to play 2.2.0 and sbt 0.13.0