merge with extensions.py update

diff --cc ChangeLog
index 782766b6ca42dc879242725ab88d856756449395,59daedacd8d5610e310387ed7924d7977861f95e..d269ff65f98bf8ff157b0578bd87f57d0e681f17
--- 1/ChangeLog
--- 2/ChangeLog
+++ b/ChangeLog
@@@ -1,55 -1,8 +1,60 @@@
+ 2008-03-21  Anthony Towns <ajt@debian.org>
+ 
+       * config/debian/extensions.py: Add infrastructure for replacing
+       functions in dak modules; add upload blocking for dpkg.
+ 
 +2008-03-12  Joerg Jaspert  <joerg@debian.org>
 +
 +      * dak/edit_transitions.py: Done a number of cleanups to make code
 +      working. Also changed the way prompting/answering goes, to not
 +      have to import daklib/queue.
 +      (edit_transitions): When done with a successful edit - also print
 +      a final overview about defined transitions
 +
 +2008-03-11  Joerg Jaspert  <joerg@debian.org>
 +
 +      * dak/process_unchecked.py: Import syck module directly, not "from
 +      syck import *"
 +      (check_transition): Do the check for sourceful upload in here
 +      Also adjust the syck loading commands, rename new_vers to
 +      expected, curvers to current, to make it more clear what they mean.
 +
 +      * daklib/database.py (get_suite_version): Renamed from
 +      get_testing_version. Also changed the cache variables name
 +
 +      * The above changes are based on modifications from Anthony.
 +
 +      * dak/dak.py (init): Renamed check -> edit transitions
 +
 +      * dak/edit_transitions.py: Renamed from check_transitions.py
 +      (main): Also rename new_vers/curvers to expected/current
 +      Basically a nice rewrite, so it now does checks and edit,
 +      depending on how you call it. Check also removes old transitions,
 +      if user wants it.
 +
 +2008-03-02  Joerg Jaspert  <joerg@debian.org>
 +
 +      * debian/control (Suggests): Add python-syck to Depends:
 +
 +      * dak/dak.py (init): Tell it about check_transitions
 +
 +      * dak/check_transitions.py (usage): Added, checks the transitions
 +      file (if any)
 +
 +      * daklib/database.py (get_testing_version): Added. Returns the
 +      version for the source in testing, if any
 +
 +      * dak/process_unchecked.py (check_transition): Added. Checks if a
 +      release team member defined a transition, and rejects based on
 +      that data.
 +      (process_it): Use it.
 +      (check_transition): Warn on broken transitions file and return,
 +      not doing anything.
 +      (check_transition): Moved out of here, into daklib/queue
 +      (process_it): Call check_transitions only if
 +      changes[architecture] has source included.
 +      (check_transition): Now call the database.get_testing_version
 +
  2008-02-06  Joerg Jaspert  <joerg@debian.org>
  
        * daklib/utils.py (check_signature): Make variable key available,