Web Content Structure and Template Editor

The WC structure/template editors are now up to date with the current 6.2 M5 release. I also converted the sample Velocity code in the template example to FreeMarker. I was able to convert all instructions and explanations successfully based on the new editors. Similar to other 6.2 features, some updates are still in progress and will need to be monitored periodically.

https://issues.liferay.com/browse/LRDOCS-344
https://issues.liferay.com/browse/LRDOCS-498