Added new method on market to compute price
Added queryPrice listeners
Merge pull request #92 from johnttan/integrateBrokerSystem#91

Integrate broker system#91
Debugged market/broker
Merge pull request #94 from johnttan/integrateBrokerDebug#93

Debugged market/broker
Specified the location of the server file
Merge pull request #95 from azotova/master

Specified the location of the server file
Integrated market and broker
Changed structure of demand payload
Merge pull request #97 from johnttan/integrateAll#96

Integrate all#96