Fixed squirrel.rm and added a basic test

installer.js

@@ -127,7 +127,8 @@ exports.prepare = function(opts) {
 **/
 exports.remove = function(opts) {
   return function(target, callback) {
-    var cmdline = _.template(opts.uninstallCommand, {
+    var commandTemplate = _.template(opts.uninstallCommand);
+    var cmdline = commandTemplate({
       opts: opts,
       target: target,
       version: opts.versions[target] || 'latest'

test/removal.js

@@ -0,0 +1,18 @@
+var squirrel = require('../'),
+    expect = require('expect.js'),
+    exec = require('child_process').exec;
+
+describe('remove module tests', function() {
+    before(function(done) {
+        squirrel('nopt', done);
+    });
+
+    it('should successfully uninstall a module', function(done) {
+        squirrel.rm('nopt', function() {
+            exec("npm list", function(err, stdout) {
+                expect(stdout).not.to.contain('nopt');
+                done(err);
+            })
+        })
+    });
+});