added config file with routing, directory listing, more complete file servering (with byte range support etc) and temporarily removed security (secret key stuff)
restore secret key in url path as a config setting, support putting the secret key itself in the config file
dir listing bug fix
ran gofmt (gofmt -w .) on all files
fix issue with commands and secret key not working with certin configurations
refactor a few things, move logic for jscore out of webserver, new file for dir index, fix index.html bug
minor cleanup in webserver
fix: empty path failed to serve either index.html or directory index
relative paths fix
compact code
Bring in dir.make from karmatics-master

Merge branch 'karmatics-master'

Conflicts:
	browser/browser_darwin.go
	slfsrv.go
	ssutil/ssutil.go
	webserver/callhandler.go
	webserver/slfsrv-core-js.go
	webserver/webserver.go