.travis.yml in rtesseract-1.3.0 vs .travis.yml in rtesseract-1.3.1

@@ -1,8 +1,11 @@
 language: ruby
-before_script: "./.travis.sh"
+addons:
+  apt:
+    packages:
+    - tesseract-ocr
+sudo: false
 rvm:
   - 1.9.3
   - 2.0.0
-  - 2.1.0
-  - 2.2.0
-
+  - 2.1.5
+  - 2.2.2