Dictionary functionality, for usernames/passwords
Generating usernames and passwords
Moving token completion to model
Styling metered password inputs
`@orange` has become not so orange - fixing
Generating usernames and passwords
Removing parent/guardian sign-up process

Token sign-up still remains, but somewhat refactored
Validating normalised username
Removing some of the more negative/strange options
merging andrew's branch
Merge remote-tracking branch 'origin/master'