Fixed license header

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1481404 13f79535-47bb-0310-9956-ffa450edef68
SHIRO-429: applied bug fix and added tests for regression

git-svn-id: https://svn.apache.org/repos/asf/shiro/trunk@1481405 13f79535-47bb-0310-9956-ffa450edef68