Add a note regarding ECP message forwarding
Make -isLoggedIn and -logout take cookies into account.

The cookie deletion process may need some tweaks to be more selective depending on how we use cookies in the future (if at all)
Changes to make the UI match the old version.

This also fixes a few odd behaviors:
- Logging out will now clear your credentials
- Users are no longer allowed to save bad credentials
Fix some odd code-signing settings