Issue #84: Paginate Actions

Addresses #84 
Added generic getPaginationData() function for findAndCountAll results.
Moved .get('/actions') logic to showActions() function.
Extend templateData in showBlocks() and showActions() with paginationData.
This logic with the parseInt and checking if currentPage < 1 should probably be in getPaginationData, then we can just pass req.query.page into getPaginationData directly.