Major bugfixes for CA correction. Added slider to allow manual override of CA correction parameters; if any manual correction slider is nonzero, manual settings are used regardless of whether CA autocorrection checkbox is enabled or not.

rtgui/preprocess.h

@@ -35,6 +35,8 @@ class PreProcess : public Gtk::VBox, public AdjusterListener, public ToolPanel{
     Gtk::Label *dfLabel;
     bool dfChanged;
 
+	Adjuster* caRed;
+    Adjuster* caBlue;
     Adjuster* lineDenoise;
     Adjuster* greenEqThreshold;
     Gtk::CheckButton* caAutocorrect;