Fixed RCelery link
add couchdb support
typo / finished sentence in comment
In Monitoring User Guide, link to Flower docs

Addresses issue #2292
apps typo in first-steps-with-django
Consistent decoding of exception result
Chord does not include self.args.  Closes #2299
Immutable chain/chord
Tests passing
BUG: The call to Pdb.set_trace occured in a conteext manager making rdb stop in
contextlib, not in the frame given.

The ignore_errno context manager there didn't suppress anything as
Pdb.set_trace does not raise an ECONNRESET in any case. After the
removal, the method was the same as Pdb.set_trace, so this just
removes Rdb's override.

The test was updated to reflect the fact that Pdb.set_trace will not
raise a ECONNRESET.
Fixes documentation build
Template 3.2 news document
Merge pull request #2331 from llllllllll/rdb-stops-in-contextlib

rdb.set_trace stops in contextlib
Update CONTRIBUTORS.txt
Adds app.add_periodic_task
Tests passing
Revokes: Make sure heap does not contain duplicates.  Closes #2336
Rest of result backends must handle encoded exception
Merge pull request #2332 from llllllllll/patch-1

Update CONTRIBUTORS.txt
Merge pull request #2329 from brouberol/master

Specify the capabilities offered by Flower HTTP API