updated background
Merge branch 'master' of https://github.com/Aerl/timerunner

Conflicts:
	timerunner/timerunner.suo
	timerunner/timerunner/timerunner/bin/x86/Debug/timerunner.exe
	timerunner/timerunner/timerunner/bin/x86/Debug/timerunner.pdb
	timerunner/timerunner/timerunner/obj/x86/Debug/cachefile-{84D8642F-5C18-4C37-9712-60DAE50AE5D6}-targetpath.txt
	timerunner/timerunner/timerunner/obj/x86/Debug/timerunner.csproj.FileListAbsolute.txt
	timerunner/timerunner/timerunner/obj/x86/Debug/timerunner.exe
	timerunner/timerunner/timerunner/obj/x86/Debug/timerunner.pdb
	timerunner/timerunner/timerunner/timerunner.csproj.Debug.cachefile
	timerunner/timerunner/timerunnerContent/obj/x86/Debug/ContentPipeline.xml