Add keyboard option to enable/disable keyboard navigation and ESC to end tour

[sorich87]

No description provided.

[LostCrew]

@sorich87 sorry but i don't understand. can you explain me?

[sorich87]

I meant we should make the tour end when the user press escape key and add an option called 'keyboard' (true by default) to disable all the keyboard bindings (like the keyboard option of Bootstrap Modal).

[LostCrew]

we already have a keyboard option. i only add the event handler attached to ESC key if keyboard is true.

[dstapp]

In the current version 0.12.0 with keyboard: true, closing the tour with ESC seems not to work. Was this ever implemented?

[vanderlee]

See PR #656.
It was easy enough to fix in JS, but this project uses coffeescript.