totems: expose TOTEM_PRIORITIES to oUF Layouts
totems: export a copy of the (STANDARD|SHAMAN)_TOTEM_PRIORITIES table
healprediction: add a .frequentUpdates option to update on UNIT_HEALTH_FREQUENT.
altpowerbar: enforce the lower and upper bounds on :SetValue.
altpowerbar: add a .showOthersAnyway option to show it for other players.
classicons: refactored class enable/disable code.
altpowerbar: hide the widget when disabled.
assistant: hide the widget when disabled.
castbar: hide the widget when disabled.
combat: hide the widget when disabled.
cpoints: hide the widgets when disabled.
eclipsebar: hide the widget when disabled.
health: hide the widget when disabled.
leader: hide the widget when disabled.
lfdrole: hide the widget when disabled.
masterlooter: hide the widget when disabled.
picon: hide the widget when disabled.
portraits: show the widget when enabled, hide it when disabled.
pvp: hide the widget when disabled.
qicon: hide the widget when disabled.