Move Java recipt to sprout-osx-apps from pivotal_workstaion
Remove the osx only guard at the top since these cookbooks are all OSX only.
Move Java's dmg_package source, volumes_dir & checksum to attributes file
Merge branch 'pr/29'

Signed-off-by: Abhijit Hiremagalur <abhi@pivotallabs.com>

Conflicts:
	pivotal_workstation/recipes/java.rb