Fix bug with exception during the cache update
Merge branch 'fix_update_exception' of https://github.com/kuljok/Netping_modern into kuljok-fix_update_exception

Conflicts:
	NetPing_modern.v11.suo
	NetPing_modern/bin/NetPing_modern.dll
	NetPing_modern/bin/NetPing_modern.pdb
	NetPing_modern/obj/Debug/NetPing_modern.csproj.GenerateResource.Cache
	NetPing_modern/obj/Debug/NetPing_modern.dll
	NetPing_modern/obj/Debug/NetPing_modern.pdb
Merge branch 'kuljok-fix_update_exception' into S4-blog