changed travis to not call bundle install every time
changed travis to not call bundle install every time

juanpinzon/citydogshare,juanpinzon/citydogshare,juanpinzon/citydogshare,sfstanley/citydogshare,sfstanley/citydogshare,juanpinzon/citydogshare,sfstanley/citydogshare,sfstanley/citydogshare