added nconf and config refactoring
Merge pull request #5 from ednapiranha/nconf

added nconf and config refactoring
Adding `request` for shorter mozillian calls, escaped query strings. This code is still insecure as it doesn't whitelist filters, but it only stands in there as reference for future mozillian API calls
get users from mozillians API via script
fixed readme format
validate persona user by email upon signin