working fix

When trying to add some water sensors I found abug were the assign page displayed the first chip assignments twice and would not save under the first iteration. I fixed this and this version has a DASHBOARD button. I added this to allow the addition of a link back to a homepage since I need to be able to access and return from the different web ui's from a kiosked iPad. I will be adding a section on the config page to modify this link or leave it out all together.