Use ajax for pagination in home page

This allows for pagination to work correctly when used
together with the filtering feature.
Merge pull request #89 from moneyadviceservice/bugfix/ajax_pagination

Use ajax for pagination in home page
Remove snippet insertion point validation

Before, we would check to see if a snippet was in another tag/element and disable the insertion.
Merge pull request #90 from moneyadviceservice/remove-snippet-insertion-validator

Remove snippet insertion point validation
Add admin users

- Protect admin only actions
- Hide admin only actions from frontend