Added some small global optimizations (a lot of internal commands changed names)
Added support for eventscripts_deadflag to make es_getlivingplayercount more responsive.
Fixed issue where es_load would allow loading a script with the same name but different case as one already loaded.
Changed es_getuserid to support looking the player up by their handle.
Made es_mathparse faster and more reliable when using variables.
Added ! unary operator to es_mathparse and ifx parse
Added three new conditional modes for blocks: 
  ifx parse(formulas) do
  ifx true(variable) do
  ifx false(variable) do
Added es_exists saycommand
Added es_exists clientcommand
Added unregsaycmd
Added unregclientcmd