* role_id is currently internally hidden and clients operate
  by the role name in /api/admin

Change-Id: Ib30a10c495818cae16a554e3857ae484c9e0183b
(cherry picked from commit 213af35)

* journaling.interceptor is migrated to JournalService.writeJournal()
* JournalService.writeJournal() is called from the controllers to
  represent correctly the written response and id
* ServiceRequest now contains 'init' key which represents a reference
  to Request to easily access the data from there

Change-Id: I19c8b882568ec3032bce648c089a9a8e846646e6
(cherry picked from commit 45525fe)

* remove distinct selection from voip_pbx_groups as customers
  with pbx groups but without memebers wont have any data in
  the provisioning.voip_pbx_groups table
* add where is_pbx_group=1 to limit the search to subscribers
  that are actually pbx groups
* the 'members' value in the response is now always returned as an
  array (empty one if there are no members), this is for backward
  compatibility with v1

Change-Id: Ia8574cae9a95df895f1b0d0018131318d46dd8da
(cherry picked from commit 1f23d6c)

* GET is now allowed by ccare, ccareadmin roles

Change-Id: I8269f13cfdfc9cd73ee1e2565b8fbe21bcab64bb
(cherry picked from commit 3850297)

* yarnpkg triggers node-gyp auto install when it
  detects bindings.gyp file in node_modules/"dependency",
  which causes it to ignore the existing available node-gyp
  version and download and use the latest one, which is
  incompatible with node v12. The solution is to install
  the Debian node-gyp v8.4.1 library which is the best version
  of the module for node v12 and in this case yarn correctly
  uses it for auto-building of the detected gyp bindings.

Change-Id: I287bb491e8569a8abb07f80016fef7141b5c9b7d