Sentence case for resource description/comment

* The first letter in the resource comment (from rdfs:comment/dc:description)
  above the property table is now forced to upper case.
Make owl:inverseOf idiom work for conf:weight
Tweaks to layout (fix column width better)
Fix bug where index is empty if conf:datasetBase used
Turn on Velocity caching to solve OutOfMem errors
Add more examples for various SPARQL queries
Fix NPE related to high-degree properties
Fix missing titles for blank nodes in value pages