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

doc/type/date.txt

@@ -0,0 +1,13 @@
+Primitive type: date and time
+
+DOC_MSE_VERSION: since 0.3.8
+
+A point in time, consisting of a date and a time.
+The file syntax uses [[http://en.wikipedia.org/wiki/ISO_8601|ISO 8601]] notation.
+
+--File syntax--
+> something: 2008-12-31 23:59:59
+
+--See also--
+| [[fun:to_date]]	Convert a value to a date
+| [[fun:to_string]]	Convert dates to strings

doc/type/index.txt

@@ -66,3 +66,4 @@ These contain several properties, similair to the file types. But they are part
 | [[type:double]]		Real numbers, @1, 0.5, 21.3@
 | [[type:version]]		Version numbers
 | [[type:color]]		Colors
+| [[type:date]]			Dates/times