more explicit description of symbol styles
Added Windows-specific buildsteps module.
Right now it only contains a `Robocopy` step.
Ability to specify a timezone for a P4 server

The Perforce server used with `P4Source` may be in a different time zone
than the Buildbot master, which would cause, for example, changes to be
displayed in the wrong place on the Waterfall display.

This change lets you specify a timezone for the server. Changelist times
will be converted from that timezone to the local timezone before being
added to the Buildbot master.
Fixed Robocopy step status

Robocopy actually returns a combination of flags to indicate
success/warning/failure status.
Added information about Robocopy exit codes.
Added documentation about Robocopy step.
Merge remote-tracking branch 'org/buildbot-0.8.8' into buildbot-0.8.8
Reintroduce deprecated `workdir` property.

It is unfortunatley named, but dropping it now doesn't provide a clear
migration path. Supporting both for at least a version allows smoother
migration.
Rework locating config file for checkconfig and upgrade-master.

This changes the logic of checkconfig so that,
1. If a file is passed, that file is used.
2. If a directory is passed containing `buildbot.tac`, that file is
   loaded and `configfile` is defined there, that file is used.
3. If `buildbot.tac` doesn't exist, or doesn't define `configfile`,
   `master.cfg` from that directory is used.

The logic for upgrade-master is similar, except only directories are
supported, so (1) is skipped.
Use twisted.python.deprecate.deprecatedModuleAttribute to deprecate SetProperty.
Gather builderid for builders
enforce builder names being unicode or ASCII
P4: Use config.error, instead of collecting errors by hand.
P4: Use tools provided by CompositeStepMixin.
Move buildslave code around to match organization of openstack latent slave.
Report `SyntaxError` or `ImportError` from `checkconfig` and `upgrade-master`.
Merge 'locate-config': Rework locating config file for checkconfig and upgrade-master.

This changes the logic of checkconfig so that,
1. If a file is passed, that file is used.
2. If a directory is passed containing buildbot.tac, that file is
loaded and configfile is defined there, that file is used.
3. If buildbot.tac doesn't exist, or doesn't define configfile,
master.cfg from that directory is used.

The logic for upgrade-master is similar, except only directories are
supported, so (1) is skipped.
Fix python2.5 syntax errors.
Fix typos: "identifing", "provices", "Reponds"
Add monkey patch that fails docs build if unhightlighted code block found