fix incorrect callback param name
clean up return value on two rpc calls
Merge pull request #51 from stewartoallen/at-pull-rpc-fixups

fix incorrect callback param name
mqworkers use list bundles in their output sinks
Adding bundle canaries to Hydra jobs.

These are a new type of alerts that can be added to map jobs.
The bundle canary alerts specify a query path, query ops, query
remote ops, and a bundle filter. The query must return one or
more rows. The first row is interpreted as a header row. Each
subsequent row is interpreted as a bundle. The bundle filter
is applied to each row and the alert is fired if any of the rows
yield a value of false.

Squashed commit of the following:

commit af21e08587648c4dcbb26b80882c9e9ec001aaa4
Author: Michael Spiegel <spiegel@addthis.com>
Date:   Tue Mar 25 16:14:12 2014 -0400

    Removed unused imports.

commit 4f1e9859f1974fd82623ad12d172db647e573104
Author: Michael Spiegel <spiegel@addthis.com>
Date:   Tue Mar 25 16:05:22 2014 -0400

    Refactoring of job alert error handling.

commit 38620145543512e54bbd21bc4fdf09a52e428234
Author: Michael Spiegel <spiegel@addthis.com>
Date:   Tue Mar 25 15:48:52 2014 -0400

    Improved error handling when specifying alerts.

commit 7ca80a665601a1a7878d2f5dd84ce3cc97b294fd
Author: Michael Spiegel <spiegel@addthis.com>
Date:   Tue Mar 25 13:36:02 2014 -0400

    Initial commit of canary query filters.
Disable migration for map jobs to improve query performance
Update map-job.rst

corrected example for type:const
Merge pull request #54 from gnurik/master

Update map-job.rst
use LN eviction for RO BDB
Revise Spawn and Minion to use simpler rebalance workflow
Remove chore framework and related tests. Revise imports.
Minion should kill only rsyncs it initiated
Rebalance method cleanups
Tasks store rebalance sources/targets. Stopping a rebalancing task will pause the rebalance until the next kick; killing it will terminate the rebalance permanently.
Revise minion stop/kill behavior when replication is for rebalancing
Prevent NPE in host scoring
Add optional copy bandwidth limit (useful for minion testing)
Implement a Rebalance_Pause exit code, to make sure spawn can distinguish between prematurely-terminated rsyncs and ones that actually finished.
Clear the target for stopped migrating task.
Prevent NPE in getHostState
in OpHistogram, more intuitive bucket bounds

values of '2' should go into the '2' bucket, not the '1' bucket