Add labels file for Gnip's Twitter format.
Add incomplete labels file for Twitter API format.
Add list of available data formats and their human readable names.
Add dataset method to replace existing field labels with those specified by a data format.
Rename data format config files to allow for more information than just field labels.
Refactor how dataset's field labels are changed when applying labels from a data format.
Add controller for data format information.
Add option to confirm form submission.
Add action to apply field labels specified by a data format to a dataset.
Add form to apply a data format's field labels to a dataset.
Fix typo.