Revert "Language now shown while logged out"

This reverts commit 816582d711468b10bf4ad3738d664d9e34719d4e.

Conflicts:
	arability/app/views/shared/_navbar.html.erb
Revert "[Issue #193] Added tests"

This reverts commit 60dc959c02e1d8ae69756872c566c54993b2dce3.
Revert "[Issue #193] Last chosen locale now stored in session to be retrieved later"

This reverts commit 269de86fc9a4e5787ca1e744deeb904474caa6bc.
Revert "[Issue #193] added translations for the navbar"

This reverts commit bb2d22a4650a89ac362547b349beb1398cc63db7.

Conflicts:
	arability/app/views/shared/_navbar.html.erb
	arability/config/locales/ar.yml
	arability/config/locales/en.yml
Revert "[Issue #193] added links to change locale in the navbar"

This reverts commit 4e9442e156b1d7ad9bab42cd821a2e5b6d77ddd1.

Conflicts:
	arability/config/locales/ar.yml
Revert "[Issue #193] Internationalization aqquired"

This reverts commit bed99929923e6329362dbbc7594bb831c22b2248.

Conflicts:
	arability/config/routes.rb