Removed has_key
Ignore backups
Fixed up orders with .get()
Check for btc_pubkey
Ok PEP8 we meet again
Merge pull request #263 from hoffmabc/master

Check for btc_pubkey
Notaries look for merchants before trying to send contract

This resolves the issue where notaries don't have a connection to a merchant when sending them a notarized contract.
Merge pull request #266 from hoffmabc/master

Notaries look for merchants before trying to send contract
Merge from master and correct pep8 issues