Changes to support robots.txt
Demo changes for SiteMaps.
Update HSQLDB version.

Fix Issue #55
Refactored pages that were using the HeadProcessor to use the new Thymeleaf 2.1 parametrized fragment inclusion.
Removed commented out code referring to blc:head.
Merge pull request #56 from BroadleafCommerce/thymeleaf-2.1

Thymeleaf 2.1 upgrade
Merge branch 'develop' into Payment-Refactor