updated bootstrap-salt.sh to provide errors for RHN if optional repo is not enabled
fixed a missing fi
updated error message to be more verbose
updated red_hat function to reduce duplication.
updated bootstrap-salt.sh to avoid negatively impacting RHEL5.
add email addr to my entry
Merge pull request #214 from cvrebert/patch-1

add email addr to my entry in AUTHORS
Merge pull request #211 from gravyboat/develop

Update to install_red_hat_linux_stable_deps function to resolve issue 198.
Added Christer Edwards(@cedwards) to authors. Add the FreeBSD repo switch in the changes log.
Fixed FreeBSD git installations not pointing to the proper salt configuration directory.
Skip patching non existing files. Quiet down `sed`.