#137 accuracy improved e.g. `3Oabc` at frist line.
#137 accuracy improved e.g. `3Oabc` at frist line.

Now separately manage inserted text by Operator and inserted text by
user’s input.
Why this require is when type `3Oabc`, and
getNewTextRangeFromCheckpoint(editor, ‘undo’) include range user’s
input. Since user’s insertion start at point BEFORE operator’s
insertion point.
To avoid this complexity, I introduced textByOperator instance variable
which store inserted text BEFORE user’s input(insertion) start.

t9md/atom-vim-mode-plus