Fix names to avoid confusion

'session code'/'session key' <- the 9 digit number for the end user
'roomId' <-- the UUID for a room generated by the backend
'shortId' <-- the data model attribute name for the session key
5 jobs for use-correct-id-name in 8 minutes and 14 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Codestyle
passed #178859
nodejs
tslint

00:02:14

 
  Test
passed #178860
nodejs
unit_tests

00:01:47

 
  Build
passed #178861
angular
ngbuild

00:04:11

 
  Review
passed #178862
nginx
review

00:00:01

manual #178863
nginx allowed to fail manual
stop_review