Fixes for many issues in flowview, graphing window, and frame playback.

In FlowView:
- Drastically improved functionality of live mode. It actually works now
- Fixed several crash bugs
- Program didn't used to pick up new frames properly. This is now corrected.

In Graphing window:
- Fixed dynamic updates to work properly even under heavy bus loads

In frame playback:
- Fixed a bug where single stepping through frames didn't send them over canbus

deltawindow.cpp

@@ -0,0 +1,14 @@
+#include "deltawindow.h"
+#include "ui_deltawindow.h"
+
+DeltaWindow::DeltaWindow(QWidget *parent) :
+    QDialog(parent),
+    ui(new Ui::DeltaWindow)
+{
+    ui->setupUi(this);
+}
+
+DeltaWindow::~DeltaWindow()
+{
+    delete ui;
+}