The package structure should be improved

[clinuxrulz]

No description provided.

[DanielGronau]

@clinuxrulz You wrote somewhere that you like the idea to follow roughly the Haskell structure, and I think this is a good starting point. I'll do this for Data, So e.g. Ord will go to org.highj.data.ord etc.

I'm not sure about the type-classes, those had to go under org.highj.control when we want to follow the Haskell structure.

Further, I'll move all helper classes like Strings from the function package to util (at least for now)

[clinuxrulz]

Sounds good for org.highj.data.* for Data stuff. And we don't have to follow Haskell's layout exactly.