Log Message:
Update to 3.0.7. From the changelog:

* man pages: use named chars or @ and (C)
* fr.po: Fixed format string bug
* Updated the spannish [sic] translation. (Fernando Sancho)
* Fix broken statistics code. save_data was called too many times.
* Rhythm: made backspace work properly
* idbyname: bugfix: don't throw an exception if loading
  lesson file was cancelled.
* Fixed idtone configuration.
* Remove 'passed' flag for tests if the lesson file change.
* i18n.py: removed debug print statements.