Added structuralChange flag to ContentChangeEvent

The document now adds an additional structuralChange flag to fired
ContendChangeEvents. This flag can be used by listeners to distinguish
text-only changes from structural changes.

Change-Id: I3e028649f2f6178255e900bf34ccf560efc8447f
Signed-off-by: Carsten Hiesserich <carsten.hie@gmail.com>
4 files changed