Auto merge verified accounts
Added 'y' to positive values for util.param
Added next_url param to get_next_url()
Remember the remember me check
Minor changes
Merge pull request #203 from lipis/auto_merge

Auto merge verified accounts
Used Flask-RESTful for API.
Fix fields type.
Improved API errors handler.
Added request.query_string value to JSON link.
Added 'check_unique_email' field to config API.
Sorted properties in CONFIG_FIELDS.
Used specified version of the flask-restful package.