Issue #2464

Issue #2448

- Adjusting indent of pasted block to current line
- Handle multi-line case, subsequent lines have their indent adjusted by their offset
to the first line.
- Add two tests for ]p to demonstrate this.
- Add [p to indent paste above

Closes #2348

Issue #2380

It has been superceded by keymap/sublime.js.

Issue #2354

"Shift-Ctrl-K"            Delete line
"Ctrl-K Ctrl-K"           Delete line to right
"Ctrl-K Ctrl-Backspace"   Delete line to left
Swapline                  scrolls with the cursor

Issue #2354

Issue #2362

Also add origins to the changes generated.

This makes it easier to update selections by mapping over them.

It should duplicate for every selection, and for non-empty selections
only duplicate the selected text.

Also, wrap the command in an operation and use the head rather than
the anchor of the selections.

Use CreateInsertModeChanges to make a copy of the latest
insert mode changes in pushInsertModeChanges so that the
latest insert mode changes can safely be modified without
bashing previously recorded macros.

Fix the :register command and add unit tests. Add a fakeOpenNotification for matching the notification text.