RFR: bots: add census bot [v2]

[Erik Helin]

> HI all,
> 
> please review this patch that adds a census syncing bot.
> 
> Thanks,
> Erik

Erik Helin has updated the pull request incrementally with one additional commit since the last revision:

  Nicer conf

-------------

Changes:
  - all: https://git.openjdk.java.net/skara/pull/796/files
  - new: https://git.openjdk.java.net/skara/pull/796/files/133caf10..9600d4db

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=796&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=796&range=00-01

  Stats: 4 lines in 1 file changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/skara/pull/796.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/796/head:pull/796

PR: https://git.openjdk.java.net/skara/pull/796