.travis.yml in net-ssh-session-0.1.5 vs .travis.yml in net-ssh-session-0.1.6

@@ -1,7 +1,6 @@
 language: ruby
 rvm:
-  - 1.8.7
   - 1.9.2
   - 1.9.3
   - 2.0.0
   - ruby-head
   - jruby-18mode