Create single journey based on url param.
Create single journey based on url param.

Moving common functionality to JourneyBase.
Removing smooth or basic specific code from journey wrapper. Creating Journey or SmoothJourney instance in JourneyWrapper initialization based on url param. SmoothJourney is default.
Adding empty virtual start and stop functions to JourneyBase.

oscarlorentzon/OpenSfM,mapillary/OpenSfM,edgarriba/OpenSfM,onecue/OpenSfM,NicWayand/OpenSfM,oscarlorentzon/OpenSfM,mapillary/OpenSfM,oscarlorentzon/OpenSfM,sunbingfengPI/OpenSFM_Test,onecue/OpenSfM,oscarlorentzon/OpenSfM,NicWayand/OpenSfM,edgarriba/OpenSfM,edgarriba/OpenSfM,sunbingfengPI/OpenSFM_Test,mapillary/OpenSfM,oscarlorentzon/OpenSfM,onecue/OpenSfM,NicWayand/OpenSfM,BrookRoberts/OpenSfM,mapillary/OpenSfM,mapillary/OpenSfM,sunbingfengPI/OpenSFM_Test,BrookRoberts/OpenSfM,sunbingfengPI/OpenSFM_Test,NicWayand/OpenSfM,onecue/OpenSfM,edgarriba/OpenSfM,BrookRoberts/OpenSfM,BrookRoberts/OpenSfM,NicWayand/OpenSfM,sunbingfengPI/OpenSFM_Test,BrookRoberts/OpenSfM,onecue/OpenSfM,edgarriba/OpenSfM