Don't use git templates

This actually throws a warning from git, but is harmless.

lib/core/config.js

@@ -34,6 +34,7 @@ try {
     cache               :  path.join(roaming, folder, 'cache'),
     links               :  path.join(roaming, folder, 'links'),
     completion          :  path.join(roaming, folder, 'completion'),
+    git_template        :  path.join(roaming, folder, 'git_template'),
     json                : 'component.json',
     endpoint            : 'https://bower.herokuapp.com',
     directory           : 'components',

lib/util/git-cmd.js

@@ -16,6 +16,7 @@ var rimraf = require('rimraf');
 var config = require('../core/config');
 
 module.exports = function (args, options, emitter) {
+  process.env.GIT_TEMPLATE_DIR = config.git_template;
   var cp = spawn('git', args, options, emitter);
   var cwd = options ? options.cwd || process.cwd() : process.cwd();
   var isTmp = path.normalize(cwd).indexOf(config.cache) === 0;
@@ -25,4 +26,4 @@ module.exports = function (args, options, emitter) {
   });
 
   return cp;
-};
+};