[VOL-1460]

Build Go stubs using the Makefile, instead of in a separate script.

New method is independent of GOPATH (which makes testing easier), and is
'go_package' aware, so any new .proto files will have directories
created and regenerated under go/

Cleaned up README.md and Makefile

Lexically sort input to protoc as --descriptor_set_out differs depending
on the order of file arguments passed to it.

Released v0.1.2

Change-Id: If9d5aabc89b4d73f3e069b01b38bd0bf8d1b3c43
diff --git a/VERSION b/VERSION
index 9d8d2c1..d917d3e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.1.2-dev0
+0.1.2