Added prune command, closes #463.

lib/core/Project.js

@@ -193,6 +193,7 @@ Project.prototype.uninstall = function (names, options) {
         return Q.reject(createError('Already working', 'EWORKING'));
     }
 
+    options = options || {};
     this._working = true;
 
     // Analyse the project
@@ -597,9 +598,7 @@ Project.prototype._readLinks = function () {
                         linked: true
                     };
                 }
-            })
-            // Mute error
-            .fail(function () {});
+            });
         });
 
         // Wait until all links have been read

lib/core/resolvers/GitRemoteResolver.js

@@ -56,8 +56,8 @@ GitRemoteResolver.prototype._checkout = function () {
         promise.progress(function (data) {
             var lines = data.split(/\r?\n/);
 
-            lines.forEach(function (data) {
-                if (/\d{1,3}\%/.test(data)) {
+            lines.forEach(function (line) {
+                if (/\d{1,3}\%/.test(line)) {
                     that._logger.info('progress', data);
                 }
             });