Remove remaining c['www']['url']

This removes all the occurrences of ['www']['url'] after commit b53998a3fac5f15d0a1d5c7bd90561f7dfec779d
tests: set buildbotURL in tests
Fix: Month not passed to NightlyBase Scheduler class

Nightly and NightlyTriggerable doesn't pass on the month param to their
base class.
Reordered params to mirror base class order.
Allow legacy describe to work before command is finished

Fixes #3096.
Merge pull request #1418 from gangefors/fix/month_not_passed_to_nightlybase

Fix: Month not passed to NightlyBase scheduler class
Refactor housekeeping when a master stops

Handle stopped masters (whether expired or normal shutdown) within the
data API.  Be careful to stop steps and logs as well as builds and build
requests, and do so with the data API.
remove uses of .format
use the correct mock method
Words: Add a forgotten defered
Use `''` as the default for repository

These repository field of a source stamp is not allowed to be None.
Don't require 'repository' in codebases

This also cleans up the documentation for the parameter.
Merge pull request #1419 from djmitche/bug3096

Allow legacy describe to work before command is finished
Merge pull request #1408 from djmitche/bug3073

Refactor housekeeping when a master stops
Merge pull request #1420 from benallard/t3094

Words: Add a forgotten defered

Fixes ticket:3094
Merge pull request #1406 from djmitche/sourcestamp-requires-repository

Use `''` as the default for repository and project
Finish PR/1417 (make test pass)
mention that we display all changes since the last successful build.
Merge pull request #1422 from benallard/pr/1417

Pr/1417
Merge pull request #1423 from benallard/patch-1

mention that we display all changes since the last successful build.