.travis.yml in gdal-0.0.6 vs .travis.yml in gdal-0.0.7

@@ -1,9 +1,10 @@
 language: ruby
 rvm:
-  - 1.8.7
   - 1.9.2
   - 1.9.3
+  - 2.1.5
+  - 2.2.1
 before_install:
   - sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable -y
   - sudo apt-get update
   - sudo apt-get install libgdal-dev