user modules + v install from vpm

vlib/os/os.v

@@ -483,6 +483,9 @@ pub fn ext(path string) string {
 
 // dir returns all but the last element of path, typically the path's directory.  
 pub fn dir(path string) string {
+	if path == '.' {
+		return getwd() 
+	} 
 	mut pos := -1
 	// TODO PathSeparator defined in os_win.v doesn't work when building V, 
 	// because v.c is generated for a nix system. 

vlib/vweb/vweb.v

@@ -32,7 +32,6 @@ pub fn (ctx Context) json(s string) {
 	ctx.conn.write('HTTP/1.1 200 OK 
 Content-Type: application/json 
 $h
-
 $s 
 ') 
 } 
@@ -71,6 +70,7 @@ $html
 } 
 
 pub fn run<T>(port int) { 
+	println('Running vweb app on http://localhost:$port ...') 
 	l := net.listen(port) or { panic('failed to listen') return } 
 	for {
 		conn := l.accept() or {