cleanup based on coder - still some issues related to code copy/pasted from cck/views which I'm going to ignore

provide a suggested about page in the README, provide an estimated price field for the start of trading and then udpate that when a trade happens to use as 'last' price in the blocks

some typo fixes; only validate trades if it is an insert, not a submit; when the installer runs save its results

make trades point to only open portfolios and items via an advanced view - also provide that view by default

More info on setting up the market including the new additional workflows - checking in to help debug a cck import/export problem

oh yeah, and an INSTALL - will update that with actuall instructions at some point, now it's just configuration reminders

checkin commit - trading contracts now works! validation, a block to show 'price' and lots of ther fun as well...

workflow states, refactoring so transactions work more consistently, and off by one in selling contracts, prevent buying beyond your bank, etc.

few more features, transaction support, buying/selling whole contract groups works, accounting for contract transactions works, no trading between users just yet though

Initial commit of a prediction market module.  Check in is done to help others in learning. - see http://openpredictionmarkets.org for more details