Update 0.16.02 to 0.18
    pkglint warns
    WARN: Makefile:3: The package is being downgraded from 0.1602 to 0.18.
    should look PKGNAME instead of DISTNAME ?
----------------------
0.18  Wed Sep 18 10:00:00 CEST 2013
        - Upgrade to stable release.

0.17_02  Wed Aug 28 22:35:02 CEST 2013
        - Fixed getters for typemaps using %output_list annotation.

0.17_01  Sat Aug 10 08:20:11 CEST 2013
        - Added standard XS typemap for objects (disabled by default for
          backwards compatibility).x
        - Allow specifying XS typemap code in the XS++ typemap declaration.
        - Generate accessors for member variables.
        - Handle multiple function/method annotations (used by plugins).
        - Updated plugin interface (should be backwards-compatible).

0.1700  Sun Feb 10 12:00:00 CET 2013
        - %alias feature for aliasing XS++ wrappers.

0.1603  Fri Dec 28 12:03:09 CEST 2012
        - Fix blead-perl warning about unescaped { in regexps.
        - Use ExtUtils::Typemaps instead of ExtUtils::Typemap (which
          had to be renamed).
        - Somewhat improved examples.

(mef)