[Ham-Mac] fldigi 4.0.12.6 post for testing

[w1hkj]

At http://www.w1hkj.com/alpha/fldigi/

  * fldigi-4.0.12.6.tar.gz
    <http://www.w1hkj.com/alpha/fldigi/fldigi-4.0.12.6.tar.gz>
  * fldigi-4.0.12.6_setup.exe
    <http://www.w1hkj.com/alpha/fldigi/fldigi-4.0.12.6_setup.exe>
  * fldigi-4.0.12.6_univ.dmg
    <http://www.w1hkj.com/alpha/fldigi/fldigi-4.0.12.6_univ.dmg>

------------------------------------------------------------------------
   Farnsworth timing
     * Changed Farnsworth CW timing to comply with ARRL spec
       published in QEX, April 1990.

   PSK sinc filter
     * force sinc filter for baud > 63

   ACL interface
     * Correct grid square transfer string

   Text capture
     * Improve upon commit 3302f0d4a56714b875
     * Added grep evaluation of locator string to contest parser
     * Added clear logging fields upon transfer of
       call from Rx panel to logging field
       - configurable on contest config panel

   OSX start process
     * Correct execute line parser

73, David, W1HKJ