pjax: Add tip namespace cooperative with PJAX

scp/apikeys.php

scp/banlist.php

scp/canned.php

scp/categories.php

scp/css/scp.css

scp/dashboard.php

scp/departments.php

scp/directory.php

scp/emails.php

scp/emailtest.php

scp/faq.php

scp/filters.php

scp/groups.php

scp/helptopics.php

scp/kb.php

scp/lists.php

scp/logs.php

scp/pages.php

scp/profile.php

scp/slas.php