Log Message:
Updating textproc/p5-XML-Tidy from 1.2.54 to 1.6

pkgsrc changes:
- adjust PTVR removal regex
- add license definition
- adjust dependencies

Upstream changes:
    - 1.6.A7RJKwl Tue Jul 27 19:20:58:47 2010
        * added head2 POD for EXPORTED CONSTANTS to try to pass t/00podc.t