rest: assert  default organisation config for bootservers
rest/bin/puavo-post-ltsp-server-load -> rest/bin/puavo-load-reporter
Use puavo-resolve-api-server in puavo-load-reporter
Add --help to puavo-load-reporter
puavo-post-ltsp-server-load -> puavo-load-reporter
Execute puavo-load-reporter only on ltsp servers
rest: Differentiate guests with bootserver auth

in post /v3/sessions

Also separate server_auth and legacy auth to own methods
rest: add forgotten groups require
Merge branch 'master' into printers
use bootserver auth in puavo-load-reporter
Merge branch 'master' into printers