Rename patmatch to mcase after its main macro

Consistently use mcase as prefix for all functions.
Merge pull request #28 from leoliu/master

Rename patmatch to mcase after its main macro
Teach erl-search-function to ignore arity when failed

to handle the case when the input is incomplete. Also use regexp
search since there might be space between the function NAME and (. See
the yaws source for examples.

Two trivial renames:
 - rename process-list-mode to erl-process-list-mode.
 - rename erl-cookie derl-cookie.
Hide edb internal functions and prefix break point accessors
Rename check-event to fsm-check-event for clarity

since 'event' is a native concept of emacs.
Merge pull request #29 from leoliu/master

Teach erl-search-function to ignore arity when failed
Merge remote-tracking branch 'massemanet/master'

* massemanet/master:
  Rename check-event to fsm-check-event for clarity
  Hide edb internal functions and prefix break point accessors
  Teach erl-search-function to ignore arity when failed
  Rename patmatch to mcase after its main macro