revert to 1.16.3

revert to 1.16.3

This just reverts all of the items that have landed since 1.16.3.
(By doing "bzr revert -r tag:juju-1.16.3").
The actual changes that were originally planned for 1.16.4 have been
pushed up to lp:~jameinel/juju-core/preparation-for-1.16.5
They have been prepared in such a way that when we have done a 1.16.4
release, we can just merge that branch, and we'll get back all the old
changes with their revision history intact. (So bzr annotate, etc will
all give the right details.)

The first follow up to this branch is going to be merging
lp:~juju/juju-core/1.16.2+update into 1.16 (since we actually want it
to become 1.16.3 + updates.)

https://code.launchpad.net/~jameinel/juju-core/rollback-to-1.16.3/+merge/196875

(do not edit description out of merge proposal)

[jameinel, 2013-11-27 12:21:49]

Please take a look.

[natefinch, 2013-11-27 12:42:28]

LGTM