Add the Java EE 7 XSDs.
The changes from the originals are:
- addition of a notice electing to license only under CDDL
- removal of trailing whitespace
- removal / replacement (which spaces) of tabs

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1480974 13f79535-47bb-0310-9956-ffa450edef68
Update deployment descriptors to Servlet 3.1

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1480975 13f79535-47bb-0310-9956-ffa450edef68
Rename webapp-3.0 test webapp to webapp.
Tests that are not explicitly designed for a specific web application version will remain in this new location.
Tests that require an specific web application version to be declared in web.xml will be moved back to the (soon to be re-created) webapp-3.0 location

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1480976 13f79535-47bb-0310-9956-ffa450edef68
Add the new 3.0 and 3.1 specific test web applications

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1480977 13f79535-47bb-0310-9956-ffa450edef68