RFR: Allow reading label configuration from a hosted repository file [v2]

[Robin Westberg]

> Hi all,
> 
> Please review this change that allows the PR bot to read (and reread on updates) label configuration from a file
> instead of storing it in the configuration.
> Best regards,
> Robin

Robin Westberg has updated the pull request incrementally with one additional commit since the last revision:

  Do case-insensitive matching like the mlrules debug command

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/767/files
  - new: https://git.openjdk.java.net/skara/pull/767/files/f1015814..0e67f6c4

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=767&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=767&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/skara/pull/767.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/767/head:pull/767

PR: https://git.openjdk.java.net/skara/pull/767