Implemented paged actions and mind control actions, and config menus to suit. There's still some sort of bug in the actionID-selection routine, it doesn't always auto-select the IDs that I think it's going to if you resize a bar several times (especially in the presence of multiple pages).

local L = LibStub("AceLocale-3.0"):GetLocale("ReAction")
local _G = _G

_G["BINDING_HEADER_REACTION"]             = L["ReAction"]

_G["BINDING_NAME_REACTION_TOGGLELOCK"]    = L["Toggle ReAction Bar Lock"]
_G["BINDING_NAME_REACTION_TOGGLEKEYBIND"] = L["ReAction Keybinding Mode"]