Make checkin/checkout events consistent

There are several operations that do a checkin or checkout, but they don't all emit the same set of events.

• saveDocument() with versioning option sends:
  beforeDocumentModification, documentCheckedIn, documentCreated, documentModified
• publishDocument() sends:
  documentCheckedIn, documentCreated (version), documentCreated (proxy), documentProxyPublished, sectionContentPublished
• restoreToVersion() when creating a snapshot sends:
  beforeRestoringDocument, documentRestored
• checkIn() sends:
  aboutToCheckIn, documentCreated, documentCheckedIn, documentCreated
• checkOut() sends:
  aboutToCheckout, documentCheckedOut

What we want is:

• for a checkin, send at least aboutToCheckIn, documentCheckedIn, documentCreated,
• for a checkout, send at least aboutToCheckout, documentCheckedOut.

So:

• saveDocument() with versioning option should send aboutToCheckIn,
• saveDocument() when doing autocheckout in presave should send aboutToCheckout, documentCheckedOut,
• publishDocument() should send aboutToCheckIn,
• publishDocument() when checking out (when called on a checked in doc with all removed versions) should send aboutToCheckout, documentCheckedOut,
• restoreToVersion() should send aboutToCheckIn, documentCreated, documentCheckedIn,
• restoreToVersion() when not skipping checkout should also send aboutToCheckout, documentCheckedOut,
• checkIn() should not send documentCreated twice (introduced by NXP-8949 which fixed another event imbalance).

This inconsistency has an impact on services like Quota which depend on some events to be present in a consistent manner.