Fix SSLError; actually verify SSL

Good news! This pull request fixes an SSLError caused by the fact that toopher.pem isn't a pem at all and should have probably been named toopher.crt, since pem files are typically crt + key. 

Better news! We previously included toopher.pem because the GlobalSign Root CA certificate isn't (typically?) included in the system CA certificates.Since we've switched to Requests, which uses its own CA certificates, we don't need to do that anymore. Check it out: `` grep GlobalSign `python -mrequests.certs` ``.