async cellfs

cellfs.cm

@@ -142,7 +142,7 @@ function mount(source, name) {
       base_url: source,
       get: function(path, callback) {
         var url = source + '/' + path
-        $clock(function() {
+        $clock(function(_t) {
           var resp = http.request('GET', url, null, null)
           if (resp && resp.status == 200) {
             callback(resp.body)
@@ -523,7 +523,7 @@ function get(path) {
     f = fd.open(full, 'r')
     acc = blob()
 
-    function next() {
+    function next(_t) {
       var chunk = null
       if (cancelled) return
       chunk = fd.read(f, 65536)