v1.7.8

-- Discard groupResults.mat which was not created by Homer3.cfg. 
-- Added functionality to ProcInputClass to check processOpt*.cfg file entries against their presence in the user function Registry. If the file does not exist do not include it in the proc stream. TBD: if no user functions were added to proc stream then add default procStream.
-- Renamed application config file from Homer3.cfg to the generic AppSettings.cfg, greatly simplified it's operation by removing the param property and leaving only the sections property. Lastly moved it's loading from Homer3.m to whichever application needs to load and check existance of the local (local to it's class) config settings. 
-- Added functionality to FindFiles which uses the config param RegressionTestActive to ask or not ask about whether to convert .nirs files to .snirf in the group folder. Homer3 normally asks if the user wants to convert .nirs files to .snirf, but if the config param RegressionTestActive is true it will not ask, and convert .nirs to .snirf automatically. 
-- Fixed problem with finding tHRF_common in Calc methods since the transition to Snirf proc stream. 
-- Changed back to flushing procStream.output. 
-- Fixed error in stimGUI caused by transition to SNIRF procStream.