[chirp_users] New Daily Build

[Build System]

Greetings,

A new daily build of CHIRP is available.  This includes changes made
directly to the tree yesterday, and may include additional features,
bug fixes, and/or bugs.  If you are interested in trying it, grab it
from the following location:

  http://trac.chirp.danplanet.com/chirp_daily/daily-20190321


A list of the changes included in this build (since the last daily)
follows:

Changes for Build #573
[DanClemmensen <DanClemmensen at gmail.com>] [ft4] restrict vfos to their bands [#6625]
Fixes: #6625

[DanClemmensen <DanClemmensen at gmail.com>] [ft4] fix errors in charset [#6605]
Fixes: #6605

[DanClemmensen <DanClemmensen at gmail.com>] [ft4] retry if errors on serial port [#6623]
Fixes: #6623
(NOTE: tested the clone-mode retries. Did not test the
checksum retries, but it cannot be any worse than is was without them. download
and upload still work just fine.)

[Dan Smith <dsmith at danplanet.com>] [run_tests] Add a clarifying comment about duplex==off handling in compare_mem

Related to #6615

[DanClemmensen <DanClemmensen at gmail.com>] [run_tests] allow force to receive-only [#6615]
Fixes: #6615