#15, Adding Close method to IPersonService
* Implemented Get and Post methods on the PositionsController.
#15, Added validation support for Close transaction
#15, Added validator for Closing a position.
#15, interim work; failing integration tests
#15: deleting integration db between tests.
#15: beginning of ruthlessly removing unnecessary complexity.
#15: removed all domain mappers in favor of AutoMapper
#15: tests are passing for domain mappings
#15:  all mappers are now converted to AutoMapper
#15:  Close position completed.
* Automapping issues completed.
#15: straightening out db connection issues. WIP
#15: actually got the site running again. Noticed a problem with the Close Position functionality.
#15: adding integration test to highlight issue with Repository implementation.
#15, fixed ClosePosition duplication problem.
Merge branch 'feature/close-position' into develop