Bump minimum Ansible to 2.4

Signed-off-by: Jared Ledvina <jared@techsmix.net>

README.md

@@ -66,7 +66,7 @@ Or, passing parameter values:
 ```
 
 ## Ansible version support
-All changes to this role are actively tested against Ansible 2.3 and 2.4 at this time. Ansible 2.3 is required at a minimum.
+All changes to this role are actively tested against Ansible 2.6 and 2.7 at this time. Ansible 2.4 is required at a minimum.
 
 
 License

docs/index.md

@@ -14,7 +14,7 @@ Along with deploying the Sensu Server, API and clients, this role can deploy a f
 However, if you want to rely on other roles/management methods to deploy/manage these services, [it's nice and easy to integrate this role](integration/).
 
 ## Requirements
-This role requires Ansible 2.3
+This role requires Ansible 2.4
 
 ## Supported Platforms
 ### Automatically tested via TravisCI

meta/main.yml

@@ -3,7 +3,7 @@ galaxy_info:
   author: Calum MacRae
   description: Deploy a full Sensu monitoring stack; including redis, RabbitMQ & the Uchiwa dashboard
   license: MIT
-  min_ansible_version: 2.3
+  min_ansible_version: 2.4
   platforms:
     - name: EL
       versions: