Integrated help into the system. Most all the sub-screens that are actually complete

and working have integrated help now. Press F1 to bring up help for a given window.

re/graphingwindow.cpp

@@ -2,6 +2,7 @@
 #include "ui_graphingwindow.h"
 #include "newgraphdialog.h"
 #include "mainwindow.h"
+#include "helpwindow.h"
 #include <QDebug>
 
 GraphingWindow::GraphingWindow(const QVector<CANFrame> *frames, QWidget *parent) :
@@ -397,6 +398,9 @@ bool GraphingWindow::eventFilter(QObject *obj, QEvent *event)
         case Qt::Key_Minus:
             zoomOut();
             break;
+        case Qt::Key_F1:
+            HelpWindow::getRef()->showHelp("graphwindow.html");
+            break;
         }
         return true;
     } else if (event->type() == QEvent::TouchBegin)