Auto merge of #52 - autrilla:travis, r=emilio
Auto merge of #52 - autrilla:travis, r=emilio

Added build back to travis (fixes #51)

servo/webrender,alanamramjit/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender_traits,alanamramjit/webrender,servo/webrender