Uifixes

Running my own CI on buildbot nine, I did find a bunch of issues in the UI. This also includes #1231 

misc fixes to the UI
- fix breadcrumbs
- add breadcrumbs on more pages
- make logviewer full screen
- automatically create slugs for logs
- fix log url (name vs slugs)
- display durations in build summaries
- fix rotation animation on chevrons
- fix mq event matchers (it matched too much events, resulting in weird update in UI)

log is usually twisted.python import log

you end up shadowing the variable which is bad, and pylint dislikes it