Buildbot to TaskCluster Migration status update 29 October 2015

We are migrating our internal CI and release processes for Mozilla products
from Buildbot to TaskCluster. Relevant:
https://twitter.com/mc_hankins/status/653621441053753344

Status updates are logged at https://public.etherpad-mozilla.org/p/buildbot
-to-taskcluster-migration

Gantt chart still here:
https://app.smartsheet.com/b/publish?EQBCT=fce174aeacc444728bfc0aee25473df6

Status:

   - EEEEEE WE ARE STARTING TO RUN LINUX BUILDS IN TC FOR REAL! Thanks,
   Andrew (ahal)!
      - Plan is to have a 2-week burn in period for TC tests before we
      consider turning of the buildbot tests
      - try syntax parity landed!
      https://bugzilla.mozilla.org/show_bug.cgi?id=1213314 Thanks, Dustin!
      - resolved mochitest problem with pulseaudio (pactl)
      https://bugzilla.mozilla.org/show_bug.cgi?id=1214194 /
      https://bugzilla.mozilla.org/show_bug.cgi?id=1214809
      - resolved v4l usage issue
      https://bugzilla.mozilla.org/show_bug.cgi?id=1217396
      - Tier2 scheduling for mochitest-webgl
      https://bugzilla.mozilla.org/show_bug.cgi?id=1218791
   - Tons of work on '*' scope reduction led by Dustin with the support of
   the entire TaskCluster team. Thank you, everyone!
   - hooks.taskcluster.net is super close to being deployed - ETA next week
   from Dustin. :)
   - Work on Okta stalled waiting for production enabling by IT.
   - Additional work on login details between Jonas and Dustin proceeding,
   nearly complete.
   - Jake (dividehex) has started in on prototyping for a coalescing
   mechanism.
   - Andrew raised an issue about "job details" that Greg is following up
   on with the sheriffs. Does not appear to be blocking.
   - Work continues on pvtbuilds plan, some things are coming together:
   https://bugzilla.mozilla.org/show_bug.cgi?id=1204021