Verry basic notifications for new mails
Remember what mails has been notified
Add a preference to enable or not desktop notifications
Add sound notification
Update README.md for v0.7.0
Bump to v0.7.0
Update mail count as soon as the scrpt in injected #9
Update README.md for v0.7.1
Bump to v0.7.1
Add a preference to either play or not a sound on a notification
Update README.md for v0.7.2
Bump to v0.7.2