Tooltips - fixes #70,#71
* Added tooltips
* Added link to terasology.org
Merge branch 'develop' of github.com:MovingBlocks/TerasologyLauncher into develop
Merge pull request #89 from skaldarnar/develop

Tooltips - fixes #70,#71
Added Gaussian blur filter to ImageUtils and blur the background image.
+ small changes to Settings dialog, may fix "windowClosed is called twice"
Merge pull request #90 from skaldarnar/develop

Gaussian Blur