chore: fix travis build issues (#75)

Author: ocombe

.travis.yml

@@ -5,18 +5,18 @@ notifications:
 node_js:
   - '10'
 before_install:
-  - export CHROME_BIN=chromium-browser
   - if [[ `npm -v` != 6* ]]; then npm i -g npm@6; fi
+services:
+ - xvfb
+addons:
+  chrome: stable
 after_success:
   - npm run build
   - cp .git dist/@ngx-translate/http-loader/ -r # required by semantic release
   - cp README.md dist/@ngx-translate/http-loader/
   - cd dist/@ngx-translate/http-loader/
-  - npm install
+  - npm install semantic-release@8.2.3 --no-save
   - npm run semantic-release
 branches:
   except:
     - /^v\d+\.\d+\.\d+$/
-before_script:
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start

projects/ngx-translate/http-loader/package.json

@@ -23,9 +23,6 @@
     "@angular/common": ">=7.0.0",
     "rxjs": ">=6.3.0"
   },
-  "devDependencies": {
-    "semantic-release": "8.2.3"
-  },
   "scripts": {
     "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   }