adds to field to request site email
refactor the crypto code a bit
adds pseudo-unique ID generation for individual credentials
adds tests for crypto
Merge pull request #219 from waltzio/unique-credential-id

Adds ability to use a unique ID per set of credentials
Merge branch 'develop'
bumps version to 1.0.7
Merge branch 'develop', bumps version to 1.0.7
Merge branch 'master' of github.com:waltzio/waltz