- Added custom rules for *.proto files to iw4x
- Added a workaround for protoc output not being automatically included
- Disable precompiled headers for protobuf generated sources
- Moved inclusion of node.pb.h out of STDInclude.hpp to only where it's necessary (WTF @momo5502)
- Removed protobuf-generated code from "protobuf" external project
- Removed protogen.bat as it is no longer needed