Travis: Build on Trusty, exact JRuby versions (#35)

.travis.yml

@@ -1,10 +1,15 @@
+dist: trusty
+language: ruby
+env:
+  global:
+    - JRUBY_OPTS=--debug
 rvm:
   - jruby-18mode
-  - jruby-19mode
+  - jruby-1.7.26
+  - jruby-9.1.7.0
   - jruby-head
-#env:
-#  - JRUBY_OPTS="--1.8"
-#  - JRUBY_OPTS="--1.9"
+before_install:
+  - gem update --system
 branches:
   only:
     - master

Gemfile

@@ -17,5 +17,5 @@ group :test do
   gem 'less', '>= 2.2.1', :require => nil
 end
 
-gem 'rake', :require => false, :group => :development
+gem 'rake', '< 11.0', :require => false, :group => :development
 gem 'jruby-openssl', :group => :development if JRUBY_VERSION < '1.7'