improved Gemfile to get used by different platforms
wrapped a ruby platform about unicorn in production mode
update sql
Merge branch 'fix-gemfile-foo' of github.com:koelncampus/kc201x into fix-gemfile-foo

Conflicts:
	Gemfile
Merge pull request #47 from koelncampus/fix-gemfile-foo

Fix gemfile foo
removed platform groups and added paltform as attributes to gems
Merge branch 'master' into submenu_programme
added an rvmrc
Merge branch 'master' into submenu_programme