Uberspace merge.

Pulled from Uberspace Repository.
Changed sample config.

Added restricted names to sample config.
Comment

Add comment to pssst.py
CLI Test

CLI Test now running anywhere, if in remote mode.
Changed pssst.py docstring.
Added Passphrase Authentication to CLI.
Added signature and verification
Clean up
Added static directory
Unit tests added for cli and server
Updated Readme file.
Merge branch 'develop' of https://github.com/pssst/pssst into develop
Release 0.2.0

Server:
* Rewrotecode
* Added support for redis database
* Added documentation
* Added list command
* Removed metadata
* Many bug fixes

CLI:
* Added documentation
* Added list command
* Added unit tests
* Added color
* Removed metadata
* Many bug fixes