Merge branch 'stable-3.2' into stable-3.3
* stable-3.2:
Do not rely on System.nanoTime for E2E metrics
Introduce the apply-objects REST-API for the whole '/meta' chain
Fix the processing of an empty HTML response body from REST-API
Fix issue with ref deletion and global-refdb
Fix issue with fetching all refs after project creation
Always fallback to fetch when ApplyObject REST-API fails
Log the reason why a ref object wasn't loaded by RevisionReader
Consider any HTTP 2xx response code from REST-API as success
Return NO_CONTENT when removing a ref through ApplyObject
Introduce E2E fetch REST-API metrics
Change-Id: I58f27ad1977921598e991b35360d016ec125fe13
