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
Fixed defect for event numbers being displayed. Closes #157.
Merge pull request #159 from dsweet04/fix_events_showing_numbers

Fixed defect for event numbers being displayed. Closes #157.
Correct rspec pattern. Fixes #166
Merge pull request #167 from justfalter/fix-specs

Correct rspec pattern. Fixes #166
Removed widgets from dashboard. Closes #154.
Renamed search_results to search_timeline. Closes #160.
Enhanced search form to keep values after submitting. Closes #161.
Moved search form to navbar. Closes #155.
Added side filters panel. Closes #156.
Moved import and detect time filters to filters panel.
Added source, provider, and feeds to filters panel.
Synced color schemes and spacing between views.