docs(installing): add k8s 1.3.4+ as supported

Author: mboersma

src/installing-workflow/index.md

@@ -1,8 +1,8 @@
 # Installing Deis Workflow
 
-This document is aimed at those who have already provisioned a Kubernetes v1.2.x cluster and want to install Deis Workflow. If
-you are just getting started with Kubernetes and Deis Workflow, follow our [quickstart guide](../quickstart/index.md)
-with help booting Kubernetes and installing Workflow.
+This document is aimed at those who have already provisioned a [Kubernetes v1.2 or v1.3.4+][] cluster
+and want to install Deis Workflow. If you are just getting started with Kubernetes and
+Deis Workflow, follow our [quickstart guide](../quickstart/index.md) for help.
 
 
 ## Prerequisites
@@ -95,3 +95,5 @@ deis-workflow-manager-68nu6   1/1       Running   0          5m
 ```
 
 Once you see all of the pods in the `READY` state, Deis Workflow is up and running!
+
+[Kubernetes v1.2 or v1.3.4+]: system-requirements.md#kubernetes-versions

src/installing-workflow/system-requirements.md

@@ -4,7 +4,10 @@ To run Deis Workflow on a Kubernetes cluster, there are a few requirements to ke
 
 ## Kubernetes Versions
 
-Deis Workflow has been tested with the **Kubernetes v1.2** release line. It is incompatible with Kubernetes v1.1 and earlier. Kubernetes v1.3.0 introduces [a bug when mounting secrets](https://github.com/deis/workflow/issues/372) which prevents Deis Workflow from starting; hopefully this will be fixed in future releases of Kubernetes.
+Deis Workflow requires Kubernetes v1.2, or v1.3.4 or newer. Workflow is not compatible with
+Kubernetes v1.1, and Kubernetes v1.3.0 through v1.3.3 have
+[a bug when mounting secrets](https://github.com/deis/workflow/issues/372) which prevents Deis
+Workflow from starting.
 
 ## Resource Requirements