Truckee 1.7: Muliple Run Histories in Model Info dialog [2]
Bug Number: n/a
Release notes (y/n): no
For Release Nums: 7.1

Review changes (from David):

(1) Make the "Last Save" QLineEdit background grey so that it doesn't look 
    editable.  (It is selectable and copyable).

(2) Max record combo box text:  "Retain information for [xxx] runs."  
    (or "run." if [xxx] == 1).

(3) Decomplexify the Clear Run History confirmation dialog.  
    Remove the "Clear Failed Run Records" option.
      Message: "Clear all of the run history records?"
      Buttons:  "Clear" and "Cancel".

(4) Reduce the default maximum model run history from (10) to (1).
    In Sim/SimWS.cpp:

  // The default maximum model run history records maintained in model file.
  // Note: This is applied to generated output and at model save time. We
  // retain an "unlimited" number of Run History Records within the RiverWare
  // session. (This makes changes to the "maximum" value non-destructive, at
  // least until the model is saved).
  static const int DEFAULT_MAX_MODEL_RUN_HIST_RECS (1); // RW 7.1: (1)

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