Adding some doxygen comments

gui/AboutWindow.h

@@ -7,6 +7,12 @@ namespace Ui {
 class AboutWindow;
 }
 
+/**
+ * @brief The AboutWindow class
+ *
+ * The AboutWindow just displays some copyright information.
+ *
+ */
 class AboutWindow : public QDialog
 {
    Q_OBJECT

gui/AnalysisWindow.h

@@ -7,6 +7,12 @@ namespace Ui {
 class AnalysisWindow;
 }
 
+/**
+ * @brief The AnalysisWindow class.
+ *
+ * The Analysis Windows class shows a plot of data. This allows visual inspection of
+ * data
+ */
 class AnalysisWindow : public QDialog
 {
    Q_OBJECT

gui/MainWindow.h

@@ -10,6 +10,13 @@ QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
 QT_END_NAMESPACE
 
+/**
+ * @brief The MainWindow class
+ *
+ * The MainWindow class holds the primary GUI window of the application. All user interactions
+ * with QtRocket begin with interactions in this window. This window can spawn other windows.
+ */
+
 class MainWindow : public QMainWindow
 {
    Q_OBJECT

gui/RocketTreeView.h

@@ -6,6 +6,9 @@
 /**
  * @brief RocketTreeView basically just renames QTreeView with a specific
  *        memorable name.
+ *
+ * The purpose is to provide an exploded view of the components that make up the
+ * rocket design, and their relationships.
  */
 class RocketTreeView : public QTreeView
 {

gui/ThrustCurveMotorSelector.h

@@ -11,6 +11,9 @@ namespace Ui {
 class ThrustCurveMotorSelector;
 }
 
+/**
+ * @brief The ThrustCurveMotorSelector class is a Window that provides an interface to Thrustcurve.org
+ */
 class ThrustCurveMotorSelector : public QDialog
 {
    Q_OBJECT