added language links
Merge branch 'master' of https://github.com/simonkrenger/ch.bfh.bti7054.w2013.q.webshop.git
changes
Merge remote-tracking branch 'origin/simon-branch'

Conflicts:
	Webshop/webroot/header.php
	Webshop/webroot/index.php
change menu
Added database classes, configuration and ezSQL. Updated ER model.