[fix bug 1069996] Enable X-XSS-Protection header.
Docker + fig to support development.

1. Install docker
2. Copy local.py-dist to local.py
3. make up
4. visit http://127.0.0.1:8000
5. make down
Reload, don't restart nginx.
[fix bug 1069970] Add X-Frame-Options HTTP header.
Merge pull request #211 from glogiotatidis/1069996

Security Enhancements
Merge pull request #209 from glogiotatidis/dockerrr

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