Client: when reconnecting, default to NT3. (#143)
Client: when reconnecting, default to NT3. (#143)

Previously once the client fell back once to NT2, it would never try
connecting as NT3 even if the server was replaced with a NT3-capable
one.

Fixes #142.
wpilibsuite/ntcore,333fred/ntcore,robotdotnet/ntcore,robotdotnet/ntcore,wpilibsuite/ntcore,333fred/ntcore,wpilibsuite/ntcore,333fred/ntcore,333fred/ntcore,robotdotnet/ntcore,robotdotnet/ntcore,wpilibsuite/ntcore