Refactored the initialisation of the redis client to follow the model used in the StatsdClient.

Basically wrapped the client so we can enable/disable, exception handle and so on.

app/clients/redis/redis_client.py

@@ -0,0 +1,20 @@
+from flask.ext.redis import FlaskRedis
+
+
+class RedisClient:
+    active = False
+    redis_store = FlaskRedis()
+
+    def init_app(self, app):
+        self.active = app.config.get('REDIS_ENABLED')
+
+        if self.active:
+            self.redis_store.init_app(app)
+
+    def set(self, key, value):
+        if self.active:
+            self.redis_store.set(key, value)
+
+    def get(self, key):
+        if self.active:
+            self.redis_store.get(key)