Update rspec to 2.8.0
Update rspec to 2.8.0

befairyliu/github,joshsoftware/github,samphilipd/github,MalachiTatum/github,cocktail-io/github,anabhilash619/github,firstval/github,GistBox/github,yaoxiaoyong/github,piotrmurach/github,peter-murach/github,wicky-info/github,durai145/github,davengeo/github