ping the node after choosing name to fix the lazy-connect strategy side effect like:
http://erlang.org/pipermail/erlang-questions/2009-September/046406.html
Merge pull request #43 from ericliang/master

ping the node after choosing name to fix the lazy-connect strategy side ...
add 'release' targets in Makefile
v4.0.7
Use define-derived-mode and defvar-local for cleanup

Add item completion support to erl-show-process-info-item.
Fix improper use of let-binding buffer-read-only.
Replace (select-window (display-buffer ...)) with (pop-to-buffer ...).
Fix &erl-process-trace-loop not to move point.