Issue ternjs/tern#668

Since collapsing might move previously hidden code into the viewport

Issue #3599

Issue #3593

Closes #3548

Closes #3549

Issue #3548

Issue #3525

Issue #3525

Closes #3538

Issue #3518

Right now if you have a selection, and you enter a bracket/quote,
surrounds it with quotation marks, and selects the entire quote. This
change should change the behaviour to selecting the interior of the
quote instead.

The motivating example for me was autocomplete, where after
autocompleting a function the arguments are selected, so if you want
to insert a string literal right now you have to delete the selection
before you can enter the quotes. With the proposed fix, it'll be
rather more fluid.

Issue #3431

Issue #3431

Issue #3431

Issue #3487

Closes #3456

- Provide custom list through CodeMirror hintOptions to kickoff
  autocompletion for domain specific usage.

Since the library is completely oblivious to module loaders

Issue #3447

Issue #3438

Issue #3423

Adding a CodeMirror option for controlling how long the ternTooltip should be visible before closing

... and export (via defineExtension) a method to explicitly trigger
linting from user code.

Closes #3409

See http://discuss.codemirror.net/t/tern-webworker-causing-hint-flickering/300