Removed old docker files

.dockerignore

@@ -1 +0,0 @@
-.git

docker-compose.yml

@@ -1,18 +0,0 @@
-mysql:
-  image: mysql:5.6
-  environment:
-    - MYSQL_ROOT_PASSWORD=cachet
-    - MYSQL_DATABASE=cachet
-    - MYSQL_USER=cachet
-    - MYSQL_PASSWORD=cachet
-cachet:
-  build: .
-  ports:
-    - 80:8000
-  links:
-    - mysql:mysql
-  environment:
-    - DB_HOST=mysql
-    - DB_DATABASE=cachet
-    - DB_USERNAME=cachet
-    - DB_PASSWORD=cachet