Added locking to the MongoDb PokerDemo "deposit" transaction. It's consistent when ran isolated, but not when competing with "transfer" transactions.
Added a "Total" in the PokerDemo client message box that shows the aggragated client sums.
Introduced the RequestsPerBatch configuration property to the PokerDemo, so we can configure different numbers for each database, instead of relying on a constant, compiled default.
Merge branch 'master' of https://github.com/Starcounter/PokerDemo