.travis.yml in volay-0.7.0 vs .travis.yml in volay-1.0.0

@@ -5,8 +5,20 @@
   - 2.1.0
 
 before_install:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
-  - sudo apt-get install -y libgirepository1.0-dev
 
 script: bundle exec rake
+
+addons:
+  apt:
+    packages:
+      - pkg-config
+      - gtk-doc-tools
+      - libgtk-3-dev
+      - libfreetype6-dev # for font function
+      - libglib2.0-dev # for font functions / tests / utils
+      - libcairo2-dev # for utils
+      - libicu-dev # for extra unicode functions
+      - libgraphite2-dev # for extra shapers
+      - libgirepository1.0-dev # for gobject-introspection