Merge pull request #752 from msteiger/mbts_dev

Added menu entry for "Drop Item" and "Hide HUD"
Add mockito as a test dependency for modules and @API to FastRandom
Merge branch 'develop' of github.com:MovingBlocks/Terasology into mbts_dev
Merge pull request #753 from msteiger/mbts_dev

Save window position on exit (centered by default)
Merge branch 'develop' of github.com:MovingBlocks/Terasology into mbts_dev
Updated .gitignore to deal with eclipse project files
Stop root project from being an (empty) eclipse project

Eclipse does not support sub-projects
Root exception dialog displays nested exception messages