Updated Travis CI configuration

.travis.yml

@@ -1,13 +1,17 @@
+dist: trusty
 language: python
 
-python:
-  - '2.7'
-
 services:
   - postgresql
 
+python:
+  - '2.7'
+
 addons:
   postgresql: '9.4'
+  apt:
+    packages:
+      - postgresql-9.4-postgis-2.2
 
 env:
   - GEOKEY='>=1.0,<1.1' DJANGO='>=1.8,<1.9'
@@ -19,17 +23,19 @@ virtualenv:
   system_site_packages: true
 
 install:
-  - sudo rm /etc/apt/sources.list.d/ubuntugis-stable-source.list
-  - sudo apt-get update -y
-  - sudo apt-get install python-gdal gdal-bin binutils
+  - sudo add-apt-repository ppa:ubuntugis/ppa -y
+  - sudo -E apt-get -yq update &>> ~/apt-get-update.log
+  - sudo apt-get install binutils libav-tools
+  - sudo apt-get -yq install libgdal1-dev gdal-bin python-gdal
+  - gdal-config --version
   - export C_INCLUDE_PATH=/usr/include/gdal
   - export CPLUS_INCLUDE_PATH=/usr/include/gdal
-  - pip install --upgrade pip
 
 before_script:
   - psql template1 postgres -c 'create extension hstore;'
   - psql -c 'create database geokey;' -U postgres
   - psql -U postgres -d geokey -c 'create extension postgis;'
+  - pip install --upgrade pip
   - pip install geokey$GEOKEY
   - pip install django$DJANGO
   - python -c "import django; print('DJANGO %s ' % django.get_version())"