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/cacheimagedata.h

@@ -49,7 +49,8 @@ class CacheImageData {
         bool  exifValid;
         double fnumber;
         double shutter;
-        double focalLen;
+        double focalLen,focalLen35mm;
+        float focusDist;
         unsigned iso;
         Glib::ustring lens;
         Glib::ustring camera;
@@ -64,7 +65,7 @@ class CacheImageData {
 		enum
 		{
 			FULL_THUMBNAIL = 0,  // was the thumbnail generated from whole file
-			QUICK_THUMBNAIL = 1, // was rhe thumbnail generated from embedded jpeg
+			QUICK_THUMBNAIL = 1 // was rhe thumbnail generated from embedded jpeg
 		};
 
         CacheImageData ();