Increase Default Stride Length from 78 to 115cm

.. 78cm is a typical walking stride length.

.. we need to think about the best way to set this.

src/ANT/ANTChannel.cpp

@@ -838,7 +838,7 @@ void ANTChannel::broadcastEvent(unsigned char *ant_message)
                     if (fpCount==4) {
 
                         // default or get config
-                        double STRIDELENGTH=78; // in cm
+                        double STRIDELENGTH=115; // 1.15m seems to be a common L2 pace stride length (?)
                         if (parent->devConf) STRIDELENGTH=parent->devConf->stridelength;
 
                         // convert to meters

src/Train/AddDeviceWizard.cpp

@@ -1192,7 +1192,7 @@ AddFinal::AddFinal(AddDeviceWizard *parent) : QWizardPage(parent), wizard(parent
     wheelSizeLayout->addWidget(wheelSizeUnitLabel);
 
     stridelengthEdit = new QLineEdit(this);
-    stridelengthEdit->setText("78");
+    stridelengthEdit->setText("115");
     QHBoxLayout *stridelengthLayout = new QHBoxLayout;
     stridelengthLayout->addWidget(stridelengthEdit);
     stridelengthLayout->addStretch();