- Refactor account creator utility functions
- Migrate account creator random username and password generators from C to C++

Delay downloading any configured contacts-vcard-list to after Configuring step & store result in DB if configured

Adjust "Alerts" suite to take into account that tmmbr values take into account non-controlled streams.

API for controlling remote push notifications parameter pn-call-remote-push-interval (Context iOS/Linhome)

Fix spurious re-INVTE after accepting a call that was disconnected during IncomingReceived state. Fix crash on iOS because of ToneManager busy with end tone of a past call while accepting a new incoming call.

Store content list under property 'content-list' to avoid having to split the multipart content body several times negatively affecting performances

      <entry uri="sip:username@domain">
       <display-name>displayName</display-name>
      </entry>

Write ChangeLog.md for 5.3.0 release, fix documentation issue, fix bug with video codec priority policy not taken into account.

Implement workaround for PBX servers that do not set the to header to the SIP identity of the callee, but to the contact uri.
Fix memory leak.

participant(s) who couldn't receive the message correctly send an IMDN
stating they received it (They switch to DeliveredToUser state)

Upon reception of a chat message, set its state to Delivered as soon as the modifiers have been processed. This allow to insert the message in the database as being in the Delivered state and therefore initialize all recipients to Delivered

Do not store the address of participants having received the message with their GRUU

Fix issue causing camera to be sent when accepting early media. Add asserts to avoid any future regression, and for audio as well.

Set all participant states to NotDelivered only if a chat message goes into the NotDelivered state and the sender is in NotDelivered state.

Table conference_info_participants has a constraint such as the triple
(participant_sip_address_id, conference_info_id, is_organizer) must be
unique. In some rare case, it happens that there are two row with the
same ivalue for column participant_sip_address_id and conference_info_id
but a different one for is_organizer. To recover from this scenario,
delete one of the two row such that the client will have the right
informations once he/she joins the conference

Add random part to conference record file to avoid that two tests write, modify or access it at the same time

Fixed default_account_changed callback not triggered when default account is deleted + added account removed callback (and renamed account created callback)

Improve the media local IP address guessing algorithm. It now uses the incoming SDP, when available.
Temporarily raise the failed threshold threshold to 3 to take into account that one of the test is failing because of an issue in flexisip-2.3

This reverts commit 0bf65d31.