Fix missing namespaces in web.xml

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove JSP and Servlet JARs as dependencies

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Update version displayed in UI to 4.0.0

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Depend on released MarkdownJ 4.0.0

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove hardcoded GAE SDK path from deploy script

Signed-off-by: Alex Coles <alex@alexbcoles.com>