- bump USE_PYTHON to 2.5+ (the point is to reduce the number of ports that depend
  on python24, since it not supported upstream anymore and the default python
  version in the ports tree is the 2.7)
- since it now requires 2.5+ eliminate py-elementtree dependency since
  elementtree is a part of python since 2.5 (please see
  http://docs.python.org/library/xml.etree.elementtree.html)
- bump portrevision
- fix whitespace nits in Makefile and pkg-plist to pet portlint
- since it now requires 2.5+ change databases/py-pysqlite2x dependency with
  databases/py-sqlite3.

I checked the source and it using this pattern to import sqlite module:
"""
try:
    from sqlite3 import dbapi2
except ImportError:
    from pysqlite2 import dbapi2
"""

so nothing will be broken with this change,

Fix: Patch attached with submission follows: