clarify golang installation instructions

docs/workstation_setup.md

@@ -37,14 +37,21 @@
     * create postgres database
 
         `createdb -U $USER`
- 
+
 6. Get redis
 
     `brew install redis`
 
-7. Get Golang
+7. Get Golang 1.3.3: As homebrew has a golang version >1.3.3 as current version, we need to install the `homebrew versions` command to check the correct git revision of golang 1.3.3
+    * `brew tap homebrew/boneyard`
+    * `brew versions go` and get the revision for version 1.3.3
+    * `cd /usr/local/Library/Formula/`
+    * `git checkout <revision> go.rb`
+    * `brew install go`
 
-    `brew install go`
+    Install vet and golint
+    * `go get code.google.com/p/go.tools/cmd/vet`
+    * `go get -u github.com/golang/lint/golint`
 
 8. Install Bundler gem