#504 - Upgrade the Thymeleaf version to 2.1.0.RELEASE in the main pom and resolve compilation failures
Merge remote-tracking branch 'origin/develop' into thymeleaf-2.1

Conflicts:
	pom.xml
Addressed missing elements after merge was completed.
#504 - Updated thymeleaf version to 2.1.2.RELEASE.
Removed temporary workaround for Thymeleaf issue #18 (resolved in version 2.1)
#504 - Refactored to work with Thymeleaf 2.1
#504 - Removed temporary workaround for Thymeleaf issue #18 (resolved in version 2.1) in admin.
Merge remote-tracking branch 'origin/develop' into thymeleaf-2.1
Deprecated the HeadProcessor as it has been made obsolete in Thymeleaf 2.1 with the inclusion of parametrized template fragments.
Merge remote-tracking branch 'origin/develop' into thymeleaf-2.1

Conflicts:
	pom.xml
Fixed POM after merge conflict.
Removed TODO line since we are deprecating the class and it is no longer relevant.
Merge pull request #504 from BroadleafCommerce/thymeleaf-2.1

Upgrade Thymeleaf to latest 2.1.2.RELEASE