Started work towards real working layers
Remove Google Analytics
Add new parameters to all effects
Store jquery-ui theme
Improved effect calling
workspace refactoring
Effects using the buffer
Small fixes

Working towards layer deletion, there are still some issues with
redrawing the image after a layer is deleted
Layer deletion is now working
Hide/Show layers work
Upgrade to FontAwesome 4
Merge pull request #10 from aurbano/real-layers

Layers are fully operational