fix 1
YARN uppercase & all stratosphere-eu github links to regular repository
added entry about building for specify hadoop versions with maven, FAQ entry about web interface
Merge pull request #323 from rmetzger/yarn_doc

Yarn Documentation for Website
Update documentation with the latest changes
Merge branch 'gh-pages' of https://github.com/fhueske/stratosphere into upd_yarn
change cli arguments in yarn docu
added documentation for Stratosphere programming model
Merge branch 'gh-pages' of github.com:dimalabs/ozone into rmetzger_preview
Merge branch 'gh-pages' of https://github.com/fhueske/stratosphere into rmetzger_preview