Replaced large logo on homepage with animated gif.
Added parameter to `events.UPDATE_UI`.
Updated FAQ.md.
Added buffer constants to buffer LuaDoc and improved Lua tags and api generator.

--HG--
rename : modules/lua/adeptsensedoc.lua => modules/lua/tadoc.lua
Fixed word autocompletion bug when ignoring case; modules/textadept/editing.lua
Generate Lua interface using Scintilla instead of SciTE; scripts/gen_iface.lua