Implementing event handler as a separate script

but not yet plugging it in via (yet-to-be-created) ShellHandler.
Merge pull request #26 from modcloth-labs/external-event-log-handler

Merged #26
Making sure we can clean even when we've never built
Moar typing bugs.
Retyped all of the mistakes I've made. Still going to have fix up some typings to get the interfaces working.
Fixed type incompatibilities resulting from the retyping in my last commit. Also go fmt had a heavy hand. Added two lines to initialize the shellhandler correctly.
Merge remote-tracking branch 'origin/master' into shell_handler_foundation

Signed-off-by: Robert Mckinstry <r.mckinstry@modcloth.com>

Conflicts:
	handler.go
	server.go