Move everything into the root directory

The separate vote-apps directory was because networking didn't
used to support aliases to remove the project name.

Signed-off-by: Ben Firshman <ben@firshman.co.uk>

docker-compose.yml

@@ -0,0 +1,36 @@
+version: "2"
+services:
+  voting-app:
+    build: ./voting-app/.
+    volumes:
+      - ./voting-app:/app
+    ports:
+      - "5000:80"
+    links:
+      - redis
+
+  redis:
+    image: redis
+    ports: ["6379"]
+
+  worker:
+    build: ./worker
+    links:
+      - db
+      - redis
+
+  db:
+    image: postgres:9.4
+    volumes:
+      - "myvolume:/var/lib/postgresql/data"
+
+  result-app:
+    build: ./result-app/.
+    volumes:
+      - ./result-app:/app
+    ports:
+      - "5001:80"
+    links:
+      - db
+volumes:
+  myvolume: