fix(controllers): ActionBlock try/catch

fix(level1): when its premarket, no OHLC are sent.

seeds

fix(ScannerRepository): only return scanners that part in a particular time offset

feat(webapi): added WebApiListenAddress it app.config

fix(repository): fixed DbSet null reference

fix(repository): fixed issue with GetScannerSymbolsOrderByOptionVolume stored procedure

feat(application): added ScannerAppService with GetScannerSymbolsOrderByOptionVolume

feat(owin): added Owin WebApi WebServices

feat(repository): added GetScannerSymbolsOrderByOptionVolume stored procedure

feat(repository): added indexes on table to optimize the performance

feat(repository): enabled migrations

feat(repository): added compound key repositories

feat(core): cleanup Level1Request when scanners are offline

feat(core): completely removing Level1Request when scanner is going offline