Merge branch 'develop'

Lots of backend improvements and bugfixes as well as a few user
facing improvements.
Update readme
Update readme++
Merge branch 'master' into develop
Fix server resilience issue (#38)

Put the core main() of the server in a while True loop so that if the
server receives any random stray (malicious?) HTTP requests that are not
from the client (do not contain 'GET /style.css HTTP/1.1'), drop the
connection and keep listening for the real client
Add ASCII logo and version flag

so we can be cool like Metasploit :)