Fixing padding for admin pagination.

Pagination was previously flush with the bottom of the content container. This gives it a nice padding.
Removing hardcoded pagination configs.

Previously, the Streams API (and consequently anything using streams) had hardcoded default values for pagination. These because outdated, and now they are replaced with the config/pagination.php config values. Much better and cleaner!

Fixes #2257
Adding the ability to pass bool values to Streams API Entries Driver.

Because of legacy constrictions, the row parser works off of 'yes'/'no' for bool values. This allows devs to pass true/false instead.
Refactoring restrict_user.

This had some logic issues that may have affected passing a username to restrict_user.