Revert "Revert "add travis-ci build status to README""
Revert "Revert "add travis-ci build status to README""

This reverts commit 433a17786a797a08f91940590fa63b9f665e6f52.

chrismytton/fancybox-rails,chrismytton/fancybox-rails,VoroninNick/eduction-abroad,varyform/fancybox2-rails,kyparn/fancybox2-rails,escobara/fancybox-rails,varyform/fancybox2-rails,kyparn/fancybox2-rails,escobara/fancybox-rails,varyform/fancybox2-rails,chrismytton/fancybox-rails,escobara/fancybox-rails,VoroninNick/eduction-abroad,kyparn/fancybox2-rails