Log Message:
Update 3.27 to  4.03
4.03
  - Fixed MANIFEST [phochste]

4.02
  - Fixed namespace issue with ResumptionToken.pm [sebastfr]

4.01
  - Reworked API to use DocumentFragments
  - Various speed improvements
  - Added bin/oai_pmh.pl CLI tool

3.28
  - Fixed parsing <description> elements that contain multiple child nodes