Introduce new project to git.

Initial commit into git to begin revision control of this project.
Remove reference to IE7-specific css and js.

Although the original aim was to try and support IE7 (hence use of
javascript animation rather than css transitions), it has become a
struggle to move the project forward (as a sole developer) due to
dealing with all the snags of IE7. The final straw was the fact the IE7
engine struggles to cope with animating large numbers of elements, so
smoothness is lost. Therefore, I am ditching it.
Update css and js location references.

The css and js files have new homes in a better folder structure.
Merge parallel changes

These are changes that I did during the JSBin days of hackery: use
string concatenation rather than line-breaking strings; add toString
method to each stream object, for purposes of identification; create a
Mediator object to handle pub/sub/reg of events; make each stream
object subscribe to each other’s events in order to move accordingly.