R1:09172a19374a

Add pagers to server clients and client authorizations in OAuth Server GUI

Summary: ...also make the pager usage in ChatLog use the nice formatWhereClause functionality

Test Plan: set $page_size = 2 and paged around the data a bit

Reviewers: epriestley

Reviewed By: epriestley

CC: aran

Maniphest Tasks: T905

Differential Revision: https://secure.phabricator.com/D2106