Redirection after redirection fix

Url attribute was fixed to make possible to reset the redirection URL after redirection was made. For more details go to Palindrom#1

`target` attribute

was added, to open pages in new tabs

0.1.3

Removed dependency on platform.js in bower.json

0.1.2

Fix event propagation for elements with URL attached before stamping to the DOM. New .redirect(url) method.