v0.0.9 - Githubissues

List of changes:

The setup has been improved in order to automatically store the secret and client ID for Google's Auth.
The setup hostname has been simplified, from now 'teaching-stats.com' will be used as local alias.
config.sh offers a new option to clean a new survey, which will clear all the participation data.
config.sh offers a new option to reset the current survey configuration, which will clear students, trainers and subjects.
Several bug fixes and improvements.