Resolve scala-refactoring from sonatype repo
Resolve scala-refactoring from sonatype repo

scala-refactoring are now published to sonatype, we no longer have to
use our own repo.

mlangc/scala-ide,dragos/scala-ide,sschaef/scala-ide,dragos/scala-ide,scala-ide/scala-ide,wpopielarski/scala-ide,dragos/scala-ide,mlangc/scala-ide,scala-ide/scala-ide,mlangc/scala-ide,scala-ide/scala-ide,sschaef/scala-ide,sschaef/scala-ide,wpopielarski/scala-ide,wpopielarski/scala-ide,scala-ide/scala-ide,wpopielarski/scala-ide,mlangc/scala-ide,sschaef/scala-ide,dragos/scala-ide