Blog post for humboldt innovation award
Add Helsinki event to events page
Move 'Contact' from 'Project' subpage to own top-level page
Allow version-specific documentation starting with v0.4
Merge pull request #332 from uce/gh-pages

Allow version-specific documentation (starting with pre-0.4 and 0.4)
added documentation for Stratosphere programming model
Documentation for accumulators
Merge pull request #334 from fhueske/gh-pages

Added documentation for Stratosphere's programming model
Merge pull request #346 from andrehacker/gh-pages-accum-docu

Documentation for accumulators
Added tab layout for the alternatives in the 'Quickstart » Create Project' sections.
added configuration of temp IO directory to cluster setup and fixed broken link
Merge pull request #353 from fhueske/ioTempDir

added configuration of temp IO directory to cluster setup
Merge branch 'gh-pages' of https://github.com/aalexandrov/stratosphere into rmetzger_preview

Conflicts:
	_config.yml
Merge branch 'gh-pages' of https://github.com/dimalabs/ozone into rmetzger_preview