allow searching blocks in reverse order for sharecounter
adding new share class
adding new cronjob to accumulate valid and invalid shares for each user between a timestamp of a block and the previous block to it
adding new table strcuture, removed unused tables
calculate propotional payout for all shares of this block
further work on sharecounter cron, almost all features available now
Merge pull request #7 from TheSerapher/sharecounter-cron

Sharecounter cron