Added URL get functions for page updates and changes to itemsPerPage.
Added directive and template for items per page.
Updated directive and template for pagination selector bar.
Updated main controller for pagination refactoring.
Updated search results view for pagination refactoring.
Fixed defect in logic for #-# of # events shown.
Updated CHANGELOG.md
Merge pull request #153 from dsweet04/refactor_ui_pagination

Refactor ui pagination