Portproxy

- Fixing issue with trailing slash.

- Bugfix

- Allow all the extra stuff after a link to get forwarded as well. `localhost/machine_name/port/blah -> localhost/redirected_port/blah`.
- Added a utility for copy/pasting a link and having it be automatically portproxified. Usage: `python -m portproxy.forward [machine_name] [link]`.

- Adding a button for reconnecting one SSH tunnel after stopping it.
- Refactoring and simplifying code
- Adding arguments to the launcher for better configurability.

- If SSH tunnel is stopped, or goes down, an attempt is made to restart it at the same port as before.
- Improved interface for handling connections.

- First official release