Merge pull request #26 from chluehr/master

Major re-design.
Added Robert / Typo3 Flow
Created slots for july 2013
added my talk
corrected date for may talk
Merge pull request #29 from nesQuick/junetalkole

added my talk
Switched to Twitter Widget due to API deprecation.
Talk proposal for July
Deleting trailing whitespaces and fixing typos
removed double "<"
added preliminary info about 2nd talk ..
.. being sloppy, i forgot to remove the CTA line ..