rose bush: web service to browse user suite logs

New `rose bush` command to start/stop ad-hoc web service server.
Modify `rose suite-hook` to generate job log files DB for `rose bush`.
Modify `rose suite-log` to use Rose Bush web service by default.
Remove JSON based log view logic from `rose suite-log` and `rose suite-hook`
Merge branch 'master' into rose-bush

Conflicts:
	lib/python/rose/suite_run.py
Fix typos
rose bush: summary and list: use icons
Merge branch 'master' into rose-bush
Merge branch 'master' into rose-bush
Merge branch 'master' into rose-bush
Merge branch 'master' into rose-bush
Merge branch 'master' into rose-bush
Merge branch 'master' into rose-bush
Merge branch 'master' into rose-bush
Update CHANGES.md
Update doc/rose-version.js

For release 2013-09.
Merge branch 'master' into rose-bush
Merge pull request #857 from matthewrmshin/rose-bush

rose bush: web service to browse user suite logs
rose host-select: fix documentation on load

It is divided by the number of *virtual* processors.
Merge pull request #944 from matthewrmshin/fix.rose-host-select.doc.load

rose host-select: fix documentation on load
rose suite-hook --mail: configurable email host

Email host defaults to `localhost` if not configured.
Merge pull request #947 from matthewrmshin/rose-suite-hook.mail.host

rose suite-hook --mail: configurable email host