Merge remote-tracking branch 'upstream/master'
Ensure contracts have a positive value and not null

Only allow to submit contract if filled out correctly
Force to string for regex comparison
Merge remote-tracking branch 'upstream/master'
Need to refactor to makePrivCryptor from makeCryptor
Migrate to new networking code
Update README.md to reflect the change in licence

Remove "protected by the GPL" and add "licensed under the MIT license".

It was kind of unclear whether it was referring to OpenBazaar or darkmarket so please ignore this if it was the later.
Clarify README.md
Merge pull request #473 from JoeFyhrCeesay/patch-1

Update README.md to reflect the change in licence
Merge remote-tracking branch 'upstream/master'
Merge pull request #461 from hoffmabc/master

[READY] Only allow correct contracts to be saved.
Merge remote-tracking branch 'upstream/master'
Add latest migrations to default db script
Fix indent
Merge pull request #478 from hoffmabc/master

Add migration sql to setup_db script