Using specific grunt uglify version.
Using specific grunt uglify version.

Until the gruntfile is updated to grunt 0.4

jtorresfabra/osgjs,kkuunnddaannkk/osgjs,jmirabel/osgjs,hishamabdelrahman/osgjs,hishamabdelrahman/osgjs,hishamabdelrahman/osgjs,cedricpinson/osgjs,gideonmay/osgjs,jtorresfabra/osgjs,gideonmay/osgjs,jmirabel/osgjs,kkuunnddaannkk/osgjs,cedricpinson/osgjs,jtorresfabra/osgjs,gideonmay/osgjs,jmirabel/osgjs,kkuunnddaannkk/osgjs,cedricpinson/osgjs