- Added more space in icons image (blenderbuttons.png)

It now only uses 1 extra row of 21 buttons. More can simply be added
- Added new icons for the new proportional edit options Root, Linear and
  Constant
- Made sure pulldown and pop-up menu work for new prop options

- Transform fix; proportional edit circle was drawing in Object mode

source/blender/include/BIF_resources.h

@@ -159,8 +159,8 @@ typedef enum {
 	ICON_BPIBFOLDER_ERR,
 	ICON_UGLY_GREEN_RING,
 	ICON_GHOST,
-	ICON_SHARPCURVE,
-	ICON_SMOOTHCURVE,
+	ICON_BLANK32,
+	ICON_BLANK33,
 	ICON_VERTEXSEL,
 	ICON_EDGESEL,
 	ICON_FACESEL,
@@ -257,7 +257,30 @@ typedef enum {
 	ICON_CONSTRAINT,
 	ICON_CAMERA_DEHLT,
 	ICON_ARMATURE_DEHLT,
-#define BIFICONID_LAST		(ICON_ARMATURE_DEHLT)
+	
+	ICON_SHARPCURVE,
+	ICON_SMOOTHCURVE,
+	ICON_ROOTCURVE,
+	ICON_LINCURVE,
+	ICON_NOCURVE,
+	ICON_BLANK46,
+	ICON_BLANK47,
+	ICON_BLANK48,
+	ICON_BLANK49,
+	ICON_BLANK50,
+	ICON_BLANK51,
+	ICON_BLANK52,
+	ICON_BLANK53,
+	ICON_BLANK54,
+	ICON_BLANK55,
+	ICON_BLANK56,
+	ICON_BLANK57,
+	ICON_BLANK58,
+	ICON_BLANK59,
+	ICON_BLANK60,
+	ICON_BLANK61,
+
+#define BIFICONID_LAST		(ICON_BLANK61)
 #define BIFNICONIDS			(BIFICONID_LAST-BIFICONID_FIRST + 1)
 } BIFIconID;