protobuf-c: bump PROTOBUF_C_VERSION to 1.0.0-rc2
protobuf-c: bump PROTOBUF_C_VERSION to 1.0.0-rc2

koolhazz/protobuf-c,y12uc231/protobuf-c,tutu12777/protobuf-c,y12uc231/protobuf-c,koolhazz/protobuf-c,tutu12777/protobuf-c,hongbinz/protobuf-c,hongbinz/protobuf-c,hongbinz/protobuf-c,virqin/protobuf-c,virqin/protobuf-c,Sannis/protobuf-c,pepsi7959/protobuf-c,virqin/protobuf-c,lanniaoershi/protobuf-c,lanniaoershi/protobuf-c,tutu12777/protobuf-c,y12uc231/protobuf-c,lanniaoershi/protobuf-c,Sannis/protobuf-c,pepsi7959/protobuf-c,Sannis/protobuf-c,koolhazz/protobuf-c,pepsi7959/protobuf-c