chore(ci): speed up the linting and deployment (#434)

Author: arnaudbesnier

.travis.yml

@@ -7,9 +7,6 @@ env:
 services:
   - docker
 
-before_install:
-  - docker-compose up -d
-
 stages:
   - Lint & Tests
   - Build & Publish
@@ -22,6 +19,7 @@ jobs:
     - script: yarn lint
       name: Lint JavaScript
     - script: sleep 20; yarn test --forceExit
+      before_install: docker-compose up -d
       name: Tests
     - stage: Build & Publish
       if: branch = master AND type != pull_request