Added license, forced https, and behavioral change

- Added BSD license terms
- changed app.yaml to ensure data is served over https.
  this ensures response is secure against MITM attacks that
  might send malicious script back, for example changing all
  bitcoin addresses on the page (such as in a donation or
  payment address) to the attacker's bitcoin address.
- added .gitignore
- respond with status code 404 if more than 3 path fragments
  are sent, rather than defaulting to full platform response
Merge branch 'master' of https://github.com/hmsimha/bitcoinp

Conflicts:
	README.md