Fixed removal of user info for URLs that contain encoded @ characters

[Lavamancer]

This bug occurs when using email addresses encoded as the user (i.e: rtsp://user%40name:pass@foo.bar/foo.mkv)

The solution is simply to use the getEncodedAuthority method instead of getAuthority. This resolves the issue because getAuthority decodes the encoded "@" symbols before splitting, resulting in a malformed URL.

Malformed URL example: rtsp://name:pass/foo.mkv

After the fix, it properly returns: rtsp://foo.bar/foo.mkv

[icbaker]

Instead of manually splitting the encoded authority on @ in order to remove the user-info and leave just the host and port, I wonder if it would instead be better to manually concatenate uri.getHost() and uri.getPort(). Then we let the Uri class deal with the splitting and encoding issues. Would that still allow your test case to pass?

[Lavamancer]

The removeUserInfo method is used with the confidence that it will only remove that part since some URLs not only contain host and port but also path, query parameters, etc. The current issue of certain %40 being converted to @ has been resolved, allowing emails to be used as usernames in the user information.

[microkatz]

@Lavamancer

I'm going to send this for internal review now. You may see some more commits being added as I make changes in response to review feedback. Please refrain from pushing any more substantive changes as it will complicate the internal review - thanks!