Merge pull request #2 from haraldk/master

Expanded/added parts on CMYK and color profiles/conversion
Updated documentation
Moved stuff into the paper folder
Adding test code for imageio, jai & twelve monkey
Cleaning up directory structure
Adding top-level README.md again
Using AbstractImageTest and fixing coding problems
Adding Apache Commons Imaging Tests
Deleting accidently added files
Some more refactoring
Ignoring IDE files
Adding image conversion tests
Some more refactoring
Adding Resampling tests
Updating documentation
Some more refactoring
Adding ASL 2.0 headers
Adding playground for image optimization
Merge pull request #1 from sgoeschl/master

Why?