add support for @ signs in usernames. Doesn't seem to break anything

lib/client.js

@@ -25,7 +25,7 @@ Client.prototype.defaults = function(options) {
 Client.prototype.parse = function(remote) {
   if (_.isString(remote)) {
     // username[:password]@host[:port][:/path/to]
-    var regex = /^([a-zA-Z0-9\-\._]+)(?:\:(.*))?@([^:]+)(?:\:([0-9]+))?(?:\:(.*))?$/;
+    var regex = /^([a-zA-Z0-9\-\._@]+)(?:\:(.*))?@([^:]+)(?:\:([0-9]+))?(?:\:(.*))?$/;
     var m = remote.match(regex);
     if (!m) return {};
     var ret = {

test/client.test.js

@@ -121,6 +121,15 @@ describe('Client', function() {
     expect(ret.path).to.equal('/home/admin/path');
   });
 
+  it('can handle "@" in username', function() {
+    ret = client.parse('admin@2:bx%[email protected]:12345:/home/admin/path');
+    expect(ret.username).to.equal('admin@2');
+    expect(ret.password).to.equal('bx%9');
+    expect(ret.host).to.equal('example.com');
+    expect(ret.port).to.equal('12345');
+    expect(ret.path).to.equal('/home/admin/path');
+  });
+
 });
 
 describe('when calling from windows', function() {