Adding support for Windows
Added support for alternative path
Cleaned up the code a bit and removed the support for alternative path.
Updated some comments
Remove suupport for java_alternative_path since it is intended for Debian to place the Java image in a non-default location
Added java_root_dir so the unless statement in the exec install_jre checks the correct directory path based on architecture
Cleaned up some formatting
Added check to see if we are running on Server HyperV.  If so, tell Java not to install the Web plugins
changes to understand the error on the Hyper flaver of server
Merge pull request #1 from nickme/master

Added support to install Java on Windows