Support Scientific Linux

Addresses issue #37
Update params.pp

Added Scientific Linux to list of RedHat operating systems
Merge pull request #44 from jengels/patch-1

Update params.pp
Merge pull request #38 from brettporter/scientific

Support Scientific Linux
adding support for ubuntu saucy
Add $java_home variable

On several places I needed to set the JAVA_HOME environment variable
for some software. To have this controlled in a central place I added
it here.
Merge pull request #47 from liwo/feature/java-home

Add $java_home variable
Merge pull request #46 from openstack-hyper-v/master

adding support for ubuntu saucy
Added support for oracle java from tarball (x86_64 only)
Added 32bit java 7 url
fixed typo
Fixed md5 mixup
Fixed md5sum arguments
Support downloading java tarball from puppet fileserver
Fixed java installation from puppet file server