added the eunit.hrl include to each file with a basic test.
Revert "added the eunit.hrl include to each file with a basic test."

This reverts commit 326c3098781341f83dfd421bee7b2468e9710f32.
rolling back last commit that turned out to be unneccessary
added documentation for the tumblich window module
addind documentation
Replace an atom with a variable

I assume what was meant was _X and not _x
Get generated docs out of the repo

Remove the generated docs and make sure .gitignore knows about this for
the future
docs and reformatting

More documentation and some code reformatting to keep emacs happy.
Merge pull request #2 from mswimmer/master

_x -> _X