Add back uri normalization for cache lookup. Test submitted by Violeta Georgieva.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1550695 13f79535-47bb-0310-9956-ffa450edef68
Fix my typos in the test.jsp test file.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1550696 13f79535-47bb-0310-9956-ffa450edef68
Fix IDE warning = uri can't be null here

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1550697 13f79535-47bb-0310-9956-ffa450edef68