do more trsvis checks

- different ruby versions
- multiple puppet versions

Author: Martin Alfke

.travis.yml

@@ -1,15 +1,34 @@
 ---
+rvm:
+  - 1.8.7
+  - 1.9.2
+  - 1.9.3
+  - 2.0.0
 language: ruby
 bundler_args: --without development
 script: "bundle exec rake lint && bundle exec rake spec SPEC_OPTS='--format documentation'"
+env:
+  - PUPPET_VERSION=2.6.18
+  - PUPPET_VERSION=2.7.23
+  - PUPPET_VERSION=3.0.2
+  - PUPPET_VERSION=3.1.1
+  - PUPPET_VERSION=3.2.4
+  - PUPPET_VERSION=3.3.2
+  - PUPPET_VERSION=3.4.1
 matrix:
   fast_finish: true
-  include:
-  - rvm: 1.8.7
-    env: PUPPET_GEM_VERSION="~> 3.0"
-  - rvm: 1.9.3
-    env: PUPPET_GEM_VERSION="~> 3.0"
-  - rvm: 2.0.0
-    env: PUPPET_GEM_VERSION="~> 3.0"
+  exclude:
+    - rvm: 1.9.2
+      env: PUPPET_VERSION=2.6.18
+    - rvm: 1.9.3
+      env: PUPPET_VERSION=2.6.18
+    - rvm: 2.0.0
+      env: PUPPET_VERSION=2.6.18
+    - rvm: 2.0.0
+      env: PUPPET_VERSION=2.7.23
+    - rvm: 2.0.0
+      env: PUPPET_VERSION=3.0.2
+    - rvm: 2.0.0
+      env: PUPPET_VERSION=3.1.1
 notifications:
   email: false