resolves issue#12, check non-local remotes when semver not satisfied

lib/semver.js

@@ -119,15 +119,28 @@ Resolver.prototype.resolveSemverLocally = function (branch, name, ref) {
  */
 
 Resolver.prototype.resolveSemverRemotely = function* (branch, name, ref) {
-  var remote = yield* this.remote.resolve(branch.resolvedRemotes, name);
-  if (!remote) throw new Error('no remote found for dependency "' + name + '".');
-  var versions = yield* remote.versions(name);
-  var version = semver.maxSatisfying(versions, ref);
-  if (version) return version;
+  var remotes = branch.resolvedRemotes;
+  // try resolve using resolvedRemotes but
+  // special case 'local' if unsuccessful
+  // i.e. if 'ref' is not satisfied by 'local' afford
+  // non-local resolvedRemotes to try to resolve it
+  do {
+    var remote = yield* this.remote.resolve(remotes, name);
+    if (!remote) throw new Error('no remote found for dependency "' + name + '".');
+    var versions = yield* remote.versions(name);
+    var version = semver.maxSatisfying(versions, ref);
+    if (version) return version;
+    remotes = remotes.filter(nonLocal);
+  } while (remote.name === 'local');
+
   // no satisfying versions!
   // this is an error for semver ranges
   if (ref !== '*') throw new Error('invalid semver range "' + ref + '" for "' + name + '"');
   // to do: use the actual "main" branch
   // ex. gh-pages
   return 'master';
 }
+
+function nonLocal(remote) {
+  return (remote !== 'local');
+}