Attention Zero-Posters 1.0.0

INFORMATION:
This will by default remind zero-posters (x days after registration) to start posting soon, beside this hack is flexible and you can use it for some other important alerting of inactive members.

FEATURES:
- Admin can set number of days (after registration) to wait before showing message to user.
- Admin can set message url to remind zero-posters.
- Admin can select which affected usergroups these permissions should be forced on to.

INSTALLATION:
Please follow the installation instructions as noted in README.txt