add front-end streams blog entry

![weeeee](http://24.media.tumblr.com/1877bcca2cf5df5c129152d2dbbdfbb4/tumblr_mh7gxafAjc1qdlh1io1_400.gif)
both of these sentences use too many words.

"A problem I deal with every day is user input changing over time in the form of DOM events. Streams are designed to deal with data that changes over time."?