Erlang Easy Profiling (eep) tool added

Handy tool helping you to understand how your (or other's) application works and where it spends most of the time.
Kcachegrind is used as GUI.
Here is an example of view:
https://raw.github.com/virtan/eep/master/doc/sshot1.png
Very useful for both beginners (helping them to understand how things work) and experts (for finding bottlenecks, for example).