Update fldigi to 4.1.01

Version 4.1.01

2019-02-18 David Freese <w1hkj@bellsouth.net>

1d4798c: CW h/w ptt
ca3e777: nanoIO
a943ae3: NAVTEX abort
ce586b8: dup-check
57cc6ea: ADIF submode
96e1f05: WF only bug fix
06c56b3: LotW
c5af7e0: Pedantic warnings
892336b: SD counties
044dd29: QRZ.com
aeed471: SV1GRB test report

Reported by: upstream