Keyboard navigation allows to navigate before fromMonth

[philippe-git]

It doesn't feel critical at all, but I wanted to bring it up nonetheless 😄

Steps to reproduce:

1. Open a day picker with restricted months, e.g. http://www.gpbl.org/react-day-picker/examples/#restricted
2. Select one of the allowed days
3. Using the left arrow key, keep navigating to previous days: you'll be able to navigate to days before fromMonth

Screencast: http://cl.ly/1E3n441u462h

Note: this issue doesn't exist when navigating through months, rather than days, using the keyboard (i.e. when pressing left arrow while focus is on a month label rather than a day box)

[gpbl]

Woah true! Thanks for the precise report. Fix coming soon!

[gpbl]

This has been fixed in the next major version, I guess after #132. Version 2 doesn't have such big breaking changes, so I'd suggest to upgrade to it once it is released :)

[philippe-git]

Awesome, thanks for the quick fix!