Tomcat 8 requires Java 7 so make that the default compiler source and target versions for JSP compilation.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1570175 13f79535-47bb-0310-9956-ffa450edef68
Add a test case that demonstrates Bug 56147 is not reproducible.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1570176 13f79535-47bb-0310-9956-ffa450edef68
Whoops. Forgot to make sure the test actually passed.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1570180 13f79535-47bb-0310-9956-ffa450edef68