Make path page code more resilient
Add new servlets for showing values of one property
Separate pages for high-degree properties

* Properties can be typed as conf:HighIndegreeProperty and conf:HighOutdegreeProperty
* Values of such properties are displayed on separate pages linked from main resource page
* conf:supportsSPARQL11 property to indicate SPARQL 1.1 support
* Default conf:resourceDescriptionQuery is now a CONSTRUCT
* New conf:[inverse]PropertyListQuery properties for customizing high-degree prop pages
* New servlets at /values[.data]/[-]ex:property/resourceStem for the property value pages
Support for inverse labels

* Specify inverse labels via owl:inverseOf: ex:prop owl:inverseOf [ rdfs:label "label" ].
* Inverse labels will be displayed instead of "is XXX of"
Support for plural labels

* Plural forms of labels can be specified using conf:pluralLabel
* Works with owl:inverseOf idiom too
* Plural labels are displayed in path/value page titles, and for multi-valued properties
Make multiple conf:High(In|Out)degreeProperties work
Cosmetic tweak