set source to 1.7 for mvn compiler plugin because travis is crraazzzyyyy
set source to 1.7 for mvn compiler plugin because travis is crraazzzyyyy

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