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[srodrigo]

Hi,

I was looking for a border gradient on circular images, so I found your library and added it. I thought it might be interesting for you.

A few things to consider:

• I didn't add an attribute in attrs to use the gradient, just by code. I haven't spent the time to check whether this is possible.
• I added the gradient on your sample, so you can see the effect. You may want to remove it tough, I just added it to show how to use it. I also attach a picture.
  
• I couldn't compile the sample app, so I had to add the library module to the sample gradle. This change has been removed from the pull request.

Regards,

Sergio.