added note for windows users
update gradle, sbt and make /home/vagrant/.cascading a directory

Conflicts:
	modules/cascading/manifests/init.pp
make the vagrant user owner of the SDK files and the hadoop conf directory
added empty default.properties files
put gradle 1.10 in the path
fix SDK permissions
Merge branch '2.2', remote-tracking branch 'upstream/2.2' into 2.2