Bump dh compat to 9

Rewrite short description and complete a bit the feature list.

debian/compat

@@ -1 +1 @@
-8
+9

debian/control

@@ -4,7 +4,7 @@ Priority: optional
 Maintainer: Debian Python Modules Team <python-modules-team@lists.alioth.debian.org>
 Uploaders: Simon Chopin <chopin.simon@gmail.com>
 Build-Depends:
- debhelper (>= 8.1),
+ debhelper (>= 9),
  python-all (>= 2.6.6-3~),
  locales (>= 0),
  python-nose,
@@ -18,7 +18,7 @@ Vcs-Browser: http://anonscm.debian.org/viewvc/python-modules/packages/kitchen/tr
 Package: python-kitchen
 Architecture: all
 Depends: ${misc:Depends}, ${python:Depends}
-Description: mix of useful Python code
+Description: Python library of containers, text and i18n helpers
  The kitchen Python package aims at gathering in one place all the snippets of
  code that the author originally carried around from project to project to ease
  the development.
@@ -26,3 +26,5 @@ Description: mix of useful Python code
  A non-exhaustive list of the features provided by kitchen:
    * helpers for text and specifically unicode handling i18n support
    * a dictionary that treats unicode and str strings as different values
+   * An helper function to change any non-list value into a single-element list
+   * Tools to help deal with PEP386 version format