submodule changed from my fork to nosami's

.gitmodules

@@ -3,4 +3,4 @@
 	url = https://github.com/davidhalter/jedi.git
 [submodule "python/ycm/completers/cs/OmniSharpServer"]
 	path = python/ycm/completers/cs/OmniSharpServer
-	url = https://github.com/Chiel92/OmniSharpServer.git
+	url = https://github.com/nosami/OmniSharpServer.git