Always read tsh profile.

[russjones]

Purpose

At the moment, we are only reading tsh profiles if you do not set the --proxy flag. This PR changes this behavior to always read profiles.

Implementation

tsh behavior has been changed to always read profiles.

• If no --proxy flag is set, then it reads from the default profile symlink ~/<tsh-dir>/profile.
• If the --proxy flag is set, then read profile from ~/<tsh-dir>/<proxy-host>.yaml.

Related Issues

Fixes #1047

[kontsevoy]

You mentioned that "username" profile setting was ignored, forcing people with valid profiles to keep adding --user=john@example.com to their tsh ssh command. I do not see any changes to address that.

[russjones]

@kontsevoy This fixes the --user=john@example.com issue. That issue was occurring when you were trying to do tsh --proxy=localhost ssh localhost and we would not load your profile because you specified a proxy.

[kontsevoy]

lgtm then