Added some features

[JurgenG]

Heya,

I love this project here, it's a great opportunity to work on my Python skills. I forked your project and added the option to store (only the breached) addresses and added some more detailed output (added modified date to output of breached addresses).

I'm planning to add some more features... feel free to improve my code (just realizing that I didn't do error catching when writing the output to a file)