revert the part which tried to fix the missing rake-0.8.7 gem [skip ci]
revert the part which tried to fix the missing rake-0.8.7 gem
[skip ci]

idibon/warbler,idibon/warbler,fedenusy/warbler,idibon/warbler,fedenusy/warbler,ctreatma/warbler,fedenusy/warbler,fedenusy/warbler,ctreatma/warbler,idibon/warbler,ctreatma/warbler,ctreatma/warbler