Source release v3.0.0-0-g8d3792b-ce + third_party

Change-Id: I399e71ddfffcd436171d1c60283c63ab4658e0b1

third_party/protobuf/protobuf.pc

@@ -0,0 +1,14 @@
+prefix=/usr/local
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${prefix}/include
+
+Name: Protocol Buffers
+Description: Google's Data Interchange Format
+Version: 2.5.0
+Libs: -L${libdir} -lprotobuf -pthread  -lpthread
+Libs.private: -lz 
+Cflags: -I${includedir} -pthread
+# Commented out because it crashes pkg-config *sigh*:
+#   http://bugs.freedesktop.org/show_bug.cgi?id=13265
+# Conflicts: protobuf-lite