Blew it up with the current set of 145 remote nodes. I increased the
limits and added checks so that it does not return bogus output.
Needs a pass to turn them into dynamically sized arrays, at some
point.

- Increased the point penalty for using a link
  which is marked as -1 ("not-connected") in the physical matrix.
  (Was 10,000; is now 100,000.)

- Now we actually report an error, and return errorcode 6,
  if the final reported solution uses any not-connected links.

Changed behavior:
If "-s <seed>" is not specified, a timeofday-dependent random
seed will be used.

In any case, when in verbose mode, the random seed used will be
printed out at the beginning of the run.

Return an error if a negative weight is passed to -1, -2, or -3.
Also, interpret negative values of minrounds as zero.
Also, interpret any negative value for maxrounds as -1.

Added loss metric (-3 switch; must be used after -2 switch.)..
Also added -1 switch to specify latency weight.

(Added for my timing tests.)

placing a "-1" anywhere in the latency or bandwidth matrices will result in
huge penalties when that connection is used in the mapping.

Also added neat (possibly novel?)
"mutation spike" which, when the standard deviation of the population gets
beneath a certain value, spikes the mutation rate from 1% to 50% for a generation,
thus keeping the deviation (and the population diversity) up.
Results from testing look promising.. in my "standard" 6-node mapping,
the solver finds the "best" solution in 95% of the runs.
(vs about 50% or less the old way.)

Added "crossover rate" to improve population stability.
Changed termination behavior to stop if, after, 256 rounds,
no better solution has been found (changable with the -r switch.)

(smaller population, non-in-place child building,
 proper 'roulette' selection function, etc.)

*<name of pnode>
to
<name of vnode> <name of pnode>

This means that fixed vnodes may have unique names
(not just the name of the pnode they are fixed to.)

Added "-v -v" mode,
"-v" now just outputs progress without "friendly" prompts/output
or error analysis.

Fixed bizarre bug in mutation engine that was wedging the solver.
(Should also allow for expts with only 1 non-fixed node.)

Added check to skip solving altogether if there are 0 non-fixed nodes.
(this also handles the edge case of an input with no virtual nodes.)

Added check to exit with errorcode if there are more virtual nodes than
can be mapped.

- Halved penalty for overshooting bandwidth (undershooting remains the same.)
- Added penalty argument to -m for assessing multiplexing penalties.
- Made a few optimizations.

- Changed internal representation to accommodate >1 vnodes per pnode.

- Added '-m' option to allow the user to specify
the maximum number of vnodes mappable onto each pnode.
(if -m is not specified, only one vnode is allowed per pnode)

- Added ability to "fix" a permanent mapping from a vnode to a pnode.
When specifying a vnode name, use the name of a pnode, with a "*"
prepended. This will be useful to fix one node as "The Testbed Node."

See comments at beginning of source for full documentation.

Look at comment at beginning of wanlinksolve.cc for full documentation.

Also added -v switch to turn on verbosity (now off by default.)

Wan (eg RON) link solver for delay, with accompianing script to fill in "physical" info part of input.