QPROP 1.00      Sep 04
----------------------
- Prototype version


QMIL  1.10    2 Aug 05
----------------------
- Prototype version


QPROP 1.14    8 Sep 05
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- Improved Prandtl's fudge factor.  
  Gives better results at inner radii.

- Changed most of the output to G format,
  to deal with wide range of magnitudes.


QMIL  1.10   4 Oc 05
--------------------
- Added qmil_doc.txt document


QPROP 1.15   12 Oct 05
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- Added general fluid properties, via optional file qcon.def
- Added include file QCON.INC with default fluid properties
- Added fluid property values to output listing


QPROP 1.16   19 Nov 05
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- Tweaked Prandtl's fudge factor further.


QPROP 1.20   6 Dec 06
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- Added many more specifiable parameters to the QPROP command line:
       Vel Rpm Volt dBeta Thrust Torque Amps Pele
  So Thrust, or Torque, or Amps can be specified instead of Rpm, for example.


QPROP 1.21   6 Jul 07
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- Fixed a few command-line parsing problems.
- Fixed definition of CT and CP in qprop_doc.txt


QPROP 1.22  10 Nov 07
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- In QMIL, increased the CLdes array limit to 100


QPROP 1.30   8 Feb 09
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- Implemented new motor types 11 and 12, which take arbitrary
  torque or power maps of the form Q(rpm,throttle) or P(rpm,throttle),
  as 2d data lookup tables.  These motor types are intended 
  for representing IC motors, whose performance numbers 
  are typically measured rather than modeled.


QPROP 1.31  27 Mar 09
---------------------
- Significantly expanded the possibility to implicitly specify 
  operating points.  The freestream speed (Vel) and the pitch angle (dBeta) 
  can now be implicitly determined by specifying the Torque, Thrust, etc,
  or some suitable combination.  Previously, Vel and dBeta were set
  to their prescribed values.

- Quantities which are NOT specified (but implicitly determined),
  are now indicated with an isolated "-" character in the command line.
  Previously these were indicated with a "0" (zero) character,
  which wouldn't work now because Vel or dBeta may need to be
  specified as zero.  The qprop_doc.txt manual gives extensive
  examples.

- Up to three parameters can have a multi-point specification.
  Previously, this was limited to two parameters.  This capability
  must be used carefully, since the run times and file dump sizes
  can explode.  For example, three parameters with 20 values each
  specifies 20^3 = 8000 individual operating points to be computed.

- Got rid of the parameter-file option to specify a case.
  I concluded it's just useless baggage in the code, since 
  the command-line specification works OK and is a lot easier.