fix(if): do not warn for >10 files

http://nodejs.org/api/events.html#events_emitter_setmaxlisteners_n
chore: add .editorconfig
chore: add .editorconfig

To make the code-style of 4-wide tabs be enforced
fix(if): do not add child listener if match fails
Merge branch 'child-max-listeners'

Conflicts:
	.editorconfig
Merge branch 'child-listener-nomatch'