For some odd reason, perl doesn't like the escaped single quote at the end of a range in a regular expression. Didn't figure out why, but moving it to a different position in the range fixed the issue. The User Registration page was not showing until this change was made.
Merge pull request #274 from jaredbischof/develop

For some odd reason, perl doesn't like the escaped single quote at the e...
Merge pull request #275 from MG-RAST/develop

Hot fix 3.3.3.1