Fix error message url uin password reset.
Update requirements.
Search best existing sport session when attaching sessions.
Add demo boolean field on club & athlete.
Support demo accounts login through one click.
Limit club actions for demo trainer.
Add cool script to build some demo sessions using existing names.
Add celery task to build demos every day.
Remove plans link.
Add a button on front page for demo.
Support demos for athlete & trainer, closes #35.
Restrict rights for demo athlete
Regenerate stats when adding demo days.
Fix bug about empty stats.
Use posgresql by default.
Add fixtures for sports.
Don't display vma page when vma value is invalid, closes #55.
Do not allow negative values on Vma, weight, height and frequencies, closes #54.
Use SportSession when exporting a month in CSV, closes #42.
Fix locale issues in Garmin, display validation message, closes #50.