[github-140] add .travis.yml. Thanks to krichter722. This closes #140

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1851312 13f79535-47bb-0310-9956-ffa450edef68

.travis.yml

@@ -0,0 +1,8 @@
+language: java
+jdk:
+- openjdk8
+before_install: /bin/true
+install: /bin/true
+before_script: /bin/true
+script:
+- ant clean test rat-check