random numbers & mail notify on project description change

[pikkewyn]

Hi!
To last changes I've added mail notification after changing project description.

[evaK-de]

Looks interesting and this e-mail notifiction should definitely be added. :)

Could you modify your pull request regarding the following points, please?

1. Exclude the changes in class.datei.php to keep separate changes in separate pull requests.
2. Remove lines 97-98 from your changes in manageproject.php since those seem to be copy&paste artifacts.
3. Ideally you would add a new string to the language file ("en" should be sufficient for now) instead of reusing "projectwasedited" in the subject. There is a specific format for this, like e.g. "Collabtive notification: New message".

[pikkewyn]

Hi, I'm glad to help :) I've removed this part regarding filenames leaving only email notification about project description change.