repro: WebAdmin: select current log level by default

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10904 ddefafc4-47db-0310-ae44-fa13212b10f2
reTurn: fail more gracefully if users.txt open/read failure occurs

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10905 ddefafc4-47db-0310-ae44-fa13212b10f2
rutil: ServerProcess: support for supplementary groups

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10906 ddefafc4-47db-0310-ae44-fa13212b10f2
rutil: Sha1: fix capitalization

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10907 ddefafc4-47db-0310-ae44-fa13212b10f2
release: Update for 1.9.0~rc1

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10908 ddefafc4-47db-0310-ae44-fa13212b10f2