Auto completion for opening square bracket

[neumino]

It's currently broken (well, it just doesn't auto complete).

The reason is a little tricky.

I catch the key code 91 because Cmd on OS X maps to it and I want to treat it like a special key (like Alt, Ctrl etc.).
The thing is that the opening bracket also map to the value 91.

I forgot to check for the event.type when I was ignoring Cmd.so I ended up not passing [ to the method pair_char that take care of doing the auto completion.

Fix coming.

[neumino]

Commit 050a832
Branch michel_917_opening_square_bracket
Code review 563
Ship 1.6 or 1.5.3 if we do another point release.

[neumino]

Review 563 completed.
Merged as 28e075b
Ship 1.6