For simplified deployment in mozilla's production environment, we must be able to generate an RPM.
move rpmbulid.sh into scripts/ - it's not important enough to all who…
… view the repo to be at the top level. issue #478
add /rpmbuild to the .gitignore. issue #478
Verified "rpmbuild.sh" in /home/browserid/code/scripts
Verified the addition of "/rpmbuild" in the .gitignore file.