* Add 'asynchronous' parameter to trading api
* Add regression algorithms
* More fixes for asynchronous orders
* Fix failing unit tests
* Fix failing unit tests
* Add multiple orders requests in transaction handler
Make each transaction thread handle requests corresponding to the same order
* Refactor order state machine in BrokerageTransactionHandler
Now using a single dictionary to hold orders and their state, either pending for submission, open or closed.
* Revert: remove complete orders from new state machine in BTH
* Add order ticket to new BTH open orders state machine
* Run syn in Backtesting transaction handler for new orders submission
* Remove OpenOrderState.SubmissionPending property
* Add Security to OpenOrderState
* Minor fix
* Cleanup
* Some cleanup in BTH
* Cleanup
* Minor fix
* Minor unit test fix
* Minor fix
* Make Brokerage.ConcurrencyEnable property virtual
* Minor change
* Cleanup
* Add 'asynchronous' parameter to SetHoldings api
* Improve regression algorithms
Jhonathan Abreu
d82d70dacf