Removed webserver, minor changes

[xnor]

• remove pagan webserver stuff from repo and move stuff to new repo
• fix pylint complains about docstring format in pagan
• pagan console version saves avatar to file, when none is specified it is saved to "input" "$ pagan /etc/password " would save avatar for input /etc/password to file /etc/password.png changed to only allow letters and digits, replace other characters to "-" "$ pagan /etc/password" saves to -etc-password.png
• pagan console, add --noshow option, to supress opening of viewer
• add test case for console pagan, add more tests

[ofalk]

@xnor If you find time, would it be possible if you resolve the conflict? I'd be also interested to see if it makes sense to split this into several PRs addressing different parts (ie. code clean up, linting, coding style, bugs...). What do you think?