Conn 78

Tests for https://wikia-inc.atlassian.net/browse/CONN-10

Tests for Sign up with Facebook Modal
Allready CRed carefully within Conn team by Evgeniy
1. tested on Jenkins for FF and CHROME, in both cases tests pass
2. It uses new development process, so CR is for merging it to DEV. It is test for new funcionality. Should be merged to preview branch on monday 26 Jan 2014.
https://github.com/Wikia/selenium-tests/pull/139/files