For #361 - further changes, citing dc workspace example, note about cranium.
For #361 - adding notes about Jammit to dependency management.
Minor correction of .on() explanation
Minor corrections and more analytical explanation of ghost views

Some minor fixes and alternative versions for some of the underscore
functions offered to collections. Also a short explenation of the
defficiency of .on() for event binding with respect to the memory leak
known as "ghost views"