Change Java back to 1.5

Thomas. I've posted a few emails about this, but not got a reply, so I propose to restore Java back to 1.5.  I'm not sure why you changed this - maybe there's a reason, but it means some people now can't run the zwave binding, and it seems strange that only zwave was changed to require 1.7 while most bindings (or at least a few that I looked at) were still 1.5.
Feel free to reject if this is needed for some reason...

Chris