dh_python2: follow Distribute and replace all non-alphanumeric characters with underscore in distribution name

    pycompile.

pyclean, pycompile: use .communicate() instead of .wait() to avoid hanging `dpkg -L PACKAGE` in few situations

    - python-minimal: Provide symlink to binary and manpage for
      /usr/bin/python2.
    This interpreter name is not created in the upstream sources.
    python should be used instead.

if debian/pyversions doesn't exist (as in -5, closes: 588820, thanks to
Vincent Legout)

- some packages moved from Conflicts to versioned Breaks
- Homepage field added

* bump PREVVER to 2.6.5+20100630-2~ and use -m compileall in debian/python-minimal.postinst

  (2.1 and 2.3 are no longer in Debian)
* revision 103 reverted (python dependency is needed for the docs symlink)

(duplicates Source's one)

(two more `set -e`s added, closes: 397499)

  - print error message if file cannot be opened (closes:
    521508, thanks to Carl Chenet for the original patch)
  - print nice error message if computed set of supported versions is empty
    (closes: 583392)

(Breaks will be used if available)

    supported versions and to make it the default version

modified:
  debian/changelog
  debian/pyversions.py

  * Merge changes back from Ubuntu package:
    - Tighten  depends relationships to '='
    - python: Add an unversioned 2to3' binary (Change pending in Debian)
    - python-minimal: Provide symlink to binary and manpage for
      /usr/bin/python2 (Closes: #566266)

modified:
  debian/changelog
  debian/control
  debian/rules

debpython module as logging module is not available in pythonX.Y-minimal
package (Closes: 586743)

modified:
  debian/changelog
  debian/python-policy.sgml

      XS-Python-Version
modified:
  debian/changelog
  debian/python-policy.sgml

(hardcoding list of versions is evil anyway)

* bump minimum required debhelper version to 6.0.7 (due to dh_lintian)

* Add some lintian overrides (for false positives)