added explanation of each vs. toArray choice
minor updates to documentation
clicking even outside of body should dismiss info panel
added async back to Sequence (makes sense, I think)
added support for specifying length on generated sequence
updated docs to reflect new async interface
added iterators for string processing methods

(this way they'll support asynchronous iteration)
more styling updates
no need to reference Sequence off of Lazy
refactored split(RegExp) into a proper iterator
refactored split(String) into proper iterator
updated docs and lib