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
rose_arch: fix directory source
Merge pull request #925 from matthewrmshin/fix.rose_arch.comma

rose_arch: fix directory source
rose mpi-launch: fix unbound ROSE_LAUNCHER_BASE
Merge pull request #926 from matthewrmshin/fix.rose-mpi-launch.unbound.base

rose mpi-launch: fix unbound ROSE_LAUNCHER_BASE
Merge branch 'master' into rose-bush
rose app-run: fix poll delays default
Update CHANGES.md
Merge pull request #927 from benfitzpatrick/rose-app-run.fix-poll-delays-default

rose app-run: fix poll delays default
Merge branch 'master' into rose-bush
Update CHANGES.md
Merge branch 'master' into rose-bush
metomi/rose#110: reduce reporting of duplicate errors
metomi/rose#278: add rose config-dump prettyprinting
metomi/rose#930: add example
rosie browser advanced search use "eq" as default operator.