do not require "+" (plus sign) before @OPERATOR_CONTACT_URL@ in user-agent -- many bots including googlebot have the +, but some don't, so having it in the default template seems sufficient
remove extraneous backslashes (thanks Kris)
Merge pull request #94 from nlevitt/ari-3724

do not require "+" (plus sign) before @OPERATOR_CONTACT_URL@ in user-age...