Forgot to add some packages to the package.json, add notes on the rc package.

lib/core/config.js

@@ -14,12 +14,8 @@ var home = (process.platform === 'win32'
     : process.env.HOME) || temp;
 
 var roaming = process.platform === 'win32'
-    ? path.resolve(process.env.APPDATA || home || temp)
-    : path.resolve(home || temp);
-
-var folder = process.platform === 'win32'
-    ? 'bower'
-    : '.bower';
+    ? path.join(path.resolve(process.env.APPDATA || home || temp), 'bower')
+    : path.join(path.resolve(home || temp), '.bower');
 
 // Guess proxy defined in the env
 var proxy = process.env.HTTPS_PROXY
@@ -33,11 +29,10 @@ var proxy = process.env.HTTPS_PROXY
 var config;
 try {
     config = require('rc')('bower', {
-        cwd: process.cwd(),
-        roaming: path.join(roaming, folder),
         json: 'bower.json',
         directory: 'bower_components',
-        proxy: proxy
+        proxy: proxy,
+        roaming: roaming
     });
 } catch (e) {
     throw new Error('Unable to parse global .bowerrc file: ' + e.message);
@@ -54,7 +49,7 @@ try {
     }
 } catch (e) {}
 
-// Add aliases that are meant to be used internally
+// Create some aliases to be used internally
 mout.object.mixIn(config, {
     _cache: path.join(config.roaming, 'cache'),
     _links: path.join(config.roaming, 'links'),