[travis] em-spec working w/ ruby 1.8.7
[travis] em-spec working w/ ruby 1.8.7

somic/sensu,portertech/sensu,roobert/sensu,m4ce/sensu,quodlibetor/sensu,miyakawataku/sensu,disqus/sensu,npe9/sensu,yonglehou/sensu,cread/sensu,javrasya/sensu,pauloconnor/sensu,upfluence/sensu,Tapjoy/sensu-mirror,sensu/sensu,zuazo-forks/sensu,crewton/sensu,keymone/sensu,disqus/sensu,rbramwell/sensu,solarkennedy/sensu,withnale/sensu,bf4/sensu