added cucumber config and test case for issue 215, accessability of admin actions
finished rspec test case for locale DE for issue #215
implemented test case 'access admin actions'
Merge branch 'rspec' into cucumber_and_rspec
Merge remote-tracking branch 'chatulli/cucumber' into cucumber_and_rspec
added localization to rspec version of admin link test
renamed navigation_step file to navigation_steps
refactored sign in helper for rspec and cucumber, added template for cucumber step definitions
refactored admin link test case, added localization aspects to admin link test case, heavily refactored step definitions
refactored localization feature test and refactored navigation element Then-Expectations
implemented localization in admin dashboard menu
fixed sign in helper localization problem (capybara visit method simulates TYPING URL+RETURN, so the locale selection gets lost when you call visit, that means as soon as you call visit, you should set the location by simulating a button/link click instead of visiting the localized url if you test more complex scenarios/more than one page call)