[skara] RFR: Initial version of census upgrade bot [v3]

[Robin Westberg]

> Allows automated conversion of census.xml to the Skara format.

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

  Apply review comments

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

Changes:
  - all: https://git.openjdk.java.net/skara/pull/1019/files
  - new: https://git.openjdk.java.net/skara/pull/1019/files/2718fadb..bfdb6374

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=skara&pr=1019&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=skara&pr=1019&range=01-02

  Stats: 29 lines in 4 files changed: 0 ins; 14 del; 15 mod
  Patch: https://git.openjdk.java.net/skara/pull/1019.diff
  Fetch: git fetch https://git.openjdk.java.net/skara pull/1019/head:pull/1019

PR: https://git.openjdk.java.net/skara/pull/1019