Update key.php

Change name with Two Factor Authentication
Merge branch 'master' of https://github.com/mManishTrivedi/Two-Factor-Authentication into mManishTrivedi-master

Conflicts:
	plugins/system/2way_verification/tmpl/key.php
Update key.php

Layout fixed with Joomla2.5
Merge pull request #2 from readybytes/master

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