Fixing the taxonomy example. Fixed #318.
More taxonomy examples in templates.
Adding a page listing the different methods available to Taxonomies.
Making the Pages Sorting methods available within a taxonomy term.
Making the term "Term" more consistent with Taxonomy usage.
Switch .Data to .Pages in the PageGroup functionality for increased consistency.
Adding .Reverse() to PagesGroup
Making direction optional (and setting defaults) for GroupBy Pages functionality.
Added more examples and cleaned up the GroupBy functionality documentation
Adding documentation about 'where' and cleaning up docs around first.