Introduce "Various implementation and stability patches" patch again

This reverts commit ec6172ef41c9ac693cf8af614b0f386ce52034e9.
Revert "oxcmsg: Implementation for partial UserDNs in ModifyRecipients call"

This reverts commit 0c86fd636f8f0493ec1965abd5370a7649b48d6f.

SOGo is not yet ready for this change so need first to fix the backend

Signed-off-by: Kamen Mazdrashki <kmazdrashki@zentyal.com>
mapistore_replica: Add mem-alloction checks in mapistore_replica_add()

This is by far a no exhaustive implementation for return values verification.
In order to cover all error paths, we need to refactor this function.

Signed-off-by: Kamen Mazdrashki <kmazdrashki@zentyal.com>
Merge branch 'master' into kamenim/zen-master

Conflicts:
	Makefile
Merge pull request #69 from Zentyal/kamenim/zen-master

Reintroduce subset of "various fixes" pull request