fitBounds() and setMaxBounds() freeze in 0.6.3

[bblack]

See http://jsfiddle.net/vLUS8/6/

Works fine in 0.5.1 and 0.6.2; freezes in 0.6.3. The tab in chrome uses 100% CPU (infinite loop?)

[mourner]

Yeah, already discovered that in #1866, will do a fix soon.

[mejackreed]

I am pretty sure panTo() is also affected