fix(at-range): forward deletion now stays with next block. (#1459)
fix(at-range): forward deletion now stays with next block. (#1459)

* fix(at-range): forward deletion now stays with next block.

* fix(at-range): use select instead of moveToRangeOf

* Revert "fix(at-range): use select instead of moveToRangeOf"

This reverts commit 43bf33e29daeaa609bf92196df1b25de42c12d96.

* fix(at-range): moveOffsetsTo

* fix(at-range): change to change.moveToStartOf(nextBlock)

ianstormtaylor/slate,isubastiCadmus/slate,ashutoshrishi/slate,ianstormtaylor/slate