Merge branch 'stable-3.8' into stable-3.9
* stable-3.8:
Revise the "init project" endpoint to manage project configuration
Extract the ser/des of HTTP payloads to utility class
Revise the "init project" client to accommodate the configuration
Improve log message when event is fired
Add JGit client test for unset mirror
Add mirror replication option for CGit client
Notes:
* Catch ResourceNotFoundException in ProjectInitializationAction:
`applyObject` was introduced in the `doPut` method since 3.8,
however in 3.9 it started raisng a `ResourceNotFoundException`
exception
* Make some mocks `lenient()`: some not needed mocks make the tests
failing. The mock were not needed in previous versions either, but
somehow the tests weren't failing before. Considering the whole
`ReplicationQueueTest` class might be reworked because of the
"excessive" mocking, mark the superfluous mock as leninent to
allow the merge to continue
* `evictAndReindex` Vs `index`: make sure to evict project cache
after project creation (I3818ff87). Also introduced temporarily
extra cache eviction
Change-Id: I96f5609d97f138ee00a0686569dc9fc720d0226d
