use node-glob instead of wildcard for better pattern support

node-glob is located here: <https://github.com/isaacs/node-glob>
It supports common filename glob patterns, including patterns
like: `'**/*.js'`.  This commit allows vows to be called, for
example, like this: `vows --spec '**/test-*.js'`.

Author: coltrane

bin/vows

@@ -4,7 +4,7 @@
 var path   = require('path'),
     fs     = require('fs'),
     util   = require('util'),
-    wildcard   = require('../lib/utils/wildcard').wildcard,
+    glob   = require('glob'),
     NopStream   = require('../lib/utils/nopstream').NopStream,
     events = require('events');
 
@@ -270,12 +270,8 @@ if (! options.watch) {
     // preprocess the list of files for any wildcards. win32 does not handle wildcards before calling vows
     // any paths not containing wildcards are simple returned by wildcard()
     files.forEach(function(a) {
-        if(a.indexOf('*') !== -1) {
-          wildcardFiles = wildcardFiles.concat(wildcard(a));
-        } else {
-          wildcardFiles.push(a);
-        }
-     });
+        wildcardFiles = wildcardFiles.concat(glob.sync(a));
+    });
 
     // now set up the file list for vows including all the wildcard files
     files = wildcardFiles.map(function (a) {

lib/utils/wildcard.js

@@ -5,7 +5,7 @@
   "keywords"      : ["testing", "spec", "test", "BDD"],
   "author"        : "Alexis Sellier <self@cloudhead.net>",
   "contributors"  : [{ "name": "Charlie Robbins", "email": "charlie.robbins@gmail.com" }],
-  "dependencies"  : {"eyes": ">=0.1.6", "diff": "~1.0.3"},
+  "dependencies"  : {"eyes": ">=0.1.6", "diff": "~1.0.3", "glob": "3.1.x"},
   "main"          : "./lib/vows",
   "bin"           : {"vows": "./bin/vows"},
   "directories"   : {"test": "./test", "bin": "./bin"},