changes to wotk with protocol 860

modules/core_lib/core_lib.otmod

@@ -7,6 +7,7 @@ Module
   onLoad: |
     require 'ext/table'
     require 'ext/string'
+    require 'ext/os'
     require 'math/point'
     require 'math/size'
     require 'math/color'

modules/core_lib/ext/os.lua

@@ -0,0 +1,6 @@
+function os.execute(command)
+  local f = assert(io.popen(command, 'r'))
+  local data = assert(f:read('*a'))
+  f:close()
+  print(data)
+end

modules/core_lib/mouse.lua

@@ -0,0 +1,2 @@
+Mouse = {}
+