lua binder improvments

modules/core_lib/core_lib.otmod

@@ -17,3 +17,4 @@ Module
     require 'dispatcher'
     require 'widget'
     require 'effects'
+    require 'settings'

modules/core_lib/ext/string.lua

@@ -16,11 +16,3 @@ end
 function string:trim()
   return self:match('^%s*(.*%S)') or ''
 end
-
-function toboolean(str)
-  str = str:trim()
-  if str == '1' or str == 'true' then
-    return true
-  end
-  return false
-end

modules/core_lib/util.lua

@@ -68,3 +68,11 @@ function resolvepath(filePath, depth)
     return filePath
   end
 end
+
+function toboolean(str)
+  str = str:trim():lower()
+  if str == '1' or str == 'true' then
+    return true
+  end
+  return false
+end