.travis.yml in progress-3.3.2 vs .travis.yml in progress-3.4.0

@@ -1,10 +1,9 @@
 sudo: false
 language: ruby
 before_install:
   - gem update bundler
 rvm:
-  - '1.8.7-p371'
   - '1.9.3-p551'
   - '2.0.0-p648'
   - '2.1.10'
   - '2.2.8'
   - '2.3.5'