BG:Usage-Statistics for the InnoBors

06th Sept
Deployed in TEST and DEV, please have a look.

We would like to get a weekly statistics over the usage of the Stock exchange, including
 * date (week)
 * # of users
 * Ideas: deleted, registered (=privat), noted, and listed
 * Votes
 * Comments
 * Investments: number of investments, invested amount,
 * amount of people having logged inn

Can you suggest on how such a list could be prepared? (logg file with entries, only visible for admin?)