Created an excerpt if there wasn't one specified in the post
Set off the wpquery object to the object so it can be used throughout the object.
Modified build__category() and build__tag() so that you can also pass slugs... not just ids.
Made queryArgs protected -- no need to be public.
Added some documentation
Added getCurrentPage() and getTotalPages() so we can get this data for the Pager object.
Created pager object
Set off query object to the object so it can be accessed in other methods.
Added pagination to find methods.