Adds integration tests.
Merge pull request #4 from nightraven/integrationtests

Adds integration tests.
Replaces ~ by ' ' in TeXs (thanks to @larsrh for reporting this).
Adds unit tests for this.
Merge pull request #5 from nightraven/integrationtests

Replaces ~ by ' ' in TeXs (thanks to @larsrh for reporting this).
Nicer wording.
Corrects spelling (thanks to Sören Johnson for spotting this)
Corrects idioms (Thanks to Sören Johnson!!)
Adds Youtube video (my first screencast!)
Makes image a little smaller
Adds google webmaster tools.
Adds meta keywords.
Adds a website icon
Adds a robots.txt
Merge https://github.com/Inventitech/AbstractFormatter