Merge with e190c52ab7861c68762aaa552f3dc0f59fe2e225 from default

This revision compiles and runs on Win7x64- but further evaluation is necessary.
There may be an issue with cmake step -After cmake I had to copy rtgui/version.h & config.h into out of source build /rtgui folder.
Additional notes:
- ImProcFunctions::hsv2rgb01   -> this likely need to be added to color.h & color.cc
- Use of array2D should be verified in NR code
- compilation warning for rtengine::RawImageSource::isWBProviderReady()

rtgui/adjuster.h

@@ -68,11 +68,16 @@ class Adjuster : public Gtk::VBox {
     Adjuster (Glib::ustring label, double vmin, double vmax, double vstep, double vdefault, bool editedCheckBox=false);
     Adjuster (Gtk::Image *imgIcon, double vmin, double vmax, double vstep, double vdefault, bool editedCheckBox=false);
     virtual ~Adjuster ();
-    void setAdjusterListener (AdjusterListener* alistener);
+    void setAdjusterListener (AdjusterListener* alistener) { adjusterListener = alistener; }
+
+    // return the value trimmed to the limits at construction time
+    double getValue () { return spin->get_value (); }
+    // return the value trimmed to the limits at construction time
+    int getIntValue () { return spin->get_value_as_int (); }
+    // return the value trimmed to the limits at construction time,
+    // method only used by the history manager
+    Glib::ustring getTextValue () { return spin->get_text (); }
 
-    double getValue ();
-    int getIntValue ();
-    Glib::ustring getTextValue ();
     void setValue (double a);   
     void setLimits (double vmin, double vmax, double vstep, double vdefault);
     void setEnabled (bool enabled);