Pass function to scrollTo parameter

[sfradel]

This is usefull in situations where scrollTo is not constant.

[gfranko]

I'll allow a function to be passed to the scrollTo option in the next release!

[gfranko]

This is now supported in the current release =)

[matryer]

@gfranko - note you can commit code with "Addresses #33" or "Fixes #33" to have issues automatically annotated or closed respectively.

[gfranko]

@matryer Yea, that would have been a better option here. If I get lazy and include multiple fixes in one commit, I tend to not close/reference issues directly since there is more code to wade through that does not apply to a particular issue. Good tip though!