The 'insert' and 'remove' operations weren't implemented in the
transaction processor and were a holdover from the old DM
implementation.
Also migrated the tests, especially those that asserted that consecutive
insert/remove operations were combined (this is no longer the case now
that they are replace operations)
Change-Id: I2379fe92b331c5316f70f4b695397da41581cce9
* Also removed beforeSplice and afterSplice in favor of just plain splice which is the same as afterSplice used to be - beforeSplice was never used and it was making things more complex looking than needed
Change-Id: Icbbc57eac73a2a206ba35409ab57b3d1a49ab1a5
It's not being used at all, and it's broken because
this.lengthDifference is set to zero regardless of what length
difference the operations passed into the constructor might cause
Change-Id: I3b7a312a1920347e7bf34df88a05bf6f2ff11f7d
