let's use right maven from the root directory. maybe fixed jruby-head test on travis as well.
let's use right maven from the root directory. maybe fixed jruby-head test on travis as well.

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