Update development environment documentation

* mention spec:integration:download_bosh_agent
* mention postgres auth=trust setup
* remove golang 1.3 instructions
* fix link to stemcell builder readme

docs/running_tests.md

@@ -49,7 +49,7 @@ You can also use a [Concourse CI](https://concourse.ci/) instance with the rake
 bosh/src$ CONCOURSE_TARGET=bosh CONCOURSE_TAG= bundle exec rake fly:integration_gocli
 ```
 
-You can run individual tests by invoking `rspec` directly after setting up the sandbox with `rake spec:integration:install_dependencies` as described in the [workstation setup docs](workstation_setup.md).
+You can run individual tests by invoking `rspec` directly after setting up the sandbox with `rake spec:integration:install_dependencies` and `rake  spec:integration:download_bosh_agent`. More information about the integration test set up can  be found in the [workstation setup docs](workstation_setup.md).
 
 ```
 bosh/src$ bundle exec rspec spec/gocli/integration/cli_env_spec.rb
@@ -91,7 +91,7 @@ Sometimes type of infrastructure does not make a difference for changes made. Fo
 
 ### Build stemcell
 
-The stemcell building process is described in [bosh-stemcell's README](../bosh-stemcell/README.md). One thing to note is that rake tasks were initially created to run tests on BOSH CI. For development purposes there should be some modifications:
+The stemcell building process is described in [bosh-stemcell's README](https://github.com/cloudfoundry/bosh-linux-stemcell-builder). One thing to note is that rake tasks were initially created to run tests on BOSH CI. For development purposes there should be some modifications:
 
 * DO NOT set `CANDIDATE_BUILD_NUMBER` when building stemcell. This will allow you to build stemcell of version `0000` which is understood by rake tasks as a local stemcell.
 * Generated stemcells of version `0000` should be put into the `bosh/tmp` directory before running BATs.

docs/workstation_setup.md

@@ -25,6 +25,9 @@
     `brew install postgresql`
 
 5. Setup and Start postgresql (required for running integration tests with postgresql (default))
+
+    The server does not use any password, the authentication method should be set to `trust` for all authentication methods in `pg_hba.conf`.
+
     * start postgres
 
         ```
@@ -35,16 +38,12 @@
     * create postgres user: $USER/\<no-password\>
 
         `createuser -U $USER --superuser postgres`
+
     * create postgres database
 
         `createdb -U $USER`
 
-6. 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`
+6. Get Golang dependencies
 
     Install vet and golint
     * `go get code.google.com/p/go.tools/cmd/vet`
@@ -104,12 +103,12 @@ To use a custom go-cli in integration tests change `gobosh` in  `src/spec/gocli/
 
 ### Cleaning the sandbox cache manually
 
-Preparing the sandbox for integration tests caches dependencies like nginx. 
+Preparing the sandbox for integration tests caches dependencies like nginx.
 To force a recompilation either delete the complete `src/tmp` folder or just the 'work' folder:
 
 ```
 bosh/src$ rm -fr tmp/integration-nginx-work/
-```  
+```
 
 ### Running integration test databases in docker