Also : 
* remove a couple of not needed tenantIds

* Remove use of function from tests

* feat(monotenancy): Remove need of tenantId from configuration manager

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

- Also remove dangling javadoc

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

* feat(monotenancy): Remove need for tenant from all rules

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

* feat(monotenancy): Remove need for tenant from login datastore

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

* Remove useless code

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

found

Covers [RUNTIME-1214](https://bonitasoft.atlassian.net/browse/RUNTIME-1214)

* add filter show_taken into /API/bpm/humanTask

Relates to [RUNTIME-1252](https://bonitasoft.atlassian.net/browse/RUNTIME-1252)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

cover [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

cover [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

allow to have same logger as bonita engine and the merge projects will be more easy.

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020)

* contains the commit of PR #875 (commit 4cacf9ebc11e3c1d9e3ab924a59ca2a450f21fbf)
* and the fix for the regression it introduced on deploy attributes

PR 875 was reverted because generating 404 errors in case of attempted deploys with Ids like "0" or "-1". These deploys should just be ignored to prevent an API break

covers [RUNTIME-334](https://bonitasoft.atlassian.net/browse/RUNTIME-334)
covers [RUNTIME-335](https://bonitasoft.atlassian.net/browse/RUNTIME-335)

This reverts commit 4cacf9ebc11e3c1d9e3ab924a59ca2a450f21fbf.

* remove tenant id from configuration files and url
* rename 'tenants' folder to 'tenant'
* Delete unused methods

Co-authored-by: Emmanuel Duchastenier <emmanuel.duchastenier@bonitasoft.com>

BOS / SP inheritance made no more sense since multitenancy removal

This PR cleans up:
* TenantIdAccessorFactory
* UserLoggerExt
* ServerProperties + server.properties file

* remove tenant from login
* remove ?tenant= in urls

covers [RUNTIME-1020](https://bonitasoft.atlassian.net/browse/RUNTIME-1020

)

Co-authored-by: Emmanuel Duchastenier <emmanuel.duchastenier@bonitasoft.com>

covers [RUNTIME-211](https://bonitasoft.atlassian.net/browse/RUNTIME-211

)

Co-authored-by: abirembaut <anthony.birembaut@gmail.com>