Changes

Summary

1. tuned NEWS;
2. more rebust setup for Subversion -- assuming that diffusion.ssh-port is only set in phabricator/conf/local/local.json, not in the database;
3. tuned;
4. tuned documentation;
5. more checks for release;
6. more packages: required for svn;
7. more robust setup: avoid blind shot at "the latest" version;
8. more documentation;
9. proper default;
10. more robust: avoid accidental use of stdin;
11. support for Phabricator upgrade;
12. tuned signature;