.travis.yml in image_optim_rake-0.0.2 vs .travis.yml in image_optim_rake-0.0.3

@@ -1,6 +1,9 @@
 language: ruby
 rvm:
   - "1.9.3"
   - "2.0.0"
-  - jruby-19mode
   - rbx-19mode
+
+before_install:
+  - sudo apt-get update -qq
+  - sudo apt-get install -qq -y advancecomp gifsicle jpegoptim libjpeg-progs optipng pngcrush