#proj UE4
#branch UE4
#summary Implemented. Refactored a bit creation of project files to allow addition of files in custom project path. Additionally fixed UBT bug that was outputting "Unhandled Exception" rather than "UnrealBuildTool Exception" on XmlConfigLoader.Init() errors.
#codereview Robert.Manuszewski
[CL 2055262 by Jaroslaw Palczynski in Main branch]