Added script support for wxDateTime values:

- added ScriptDateTime type
 - added to_date function
 - added date formating support to to_string.
 - documented all of the above.

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1348 0fc631ac-6414-0410-93d0-97cfa31319b6

data/en.mse-locale/locale

@@ -818,6 +818,7 @@ type:
 	boolean:		boolean
 	color:			color
 	image:			image
+	date:			date
 	nil:			nothing
 	
 	# Object types