add SetNumberFormat to api builder

cell/apiBuilder.js

@@ -549,6 +549,15 @@
 		this.range.setFill(new AscCommonExcel.RgbColor((r << 16) + (g << 8) + b));
 	};
 
+	/**
+	 * Set the number format.
+	 * @memberof ApiRange
+	 * @param {string} value
+	 */
+	ApiRange.prototype.SetNumberFormat = function (value) {
+		this.range.setNumFormat(value);
+	};
+
 
 
 
@@ -783,6 +792,7 @@
 	ApiRange.prototype["SetUnderline"] = ApiRange.prototype.SetUnderline;
 	ApiRange.prototype["SetStrikeout"] = ApiRange.prototype.SetStrikeout;
 	ApiRange.prototype["SetFillColor"] = ApiRange.prototype.SetFillColor;
+	ApiRange.prototype["SetNumberFormat"] = ApiRange.prototype.SetNumberFormat;
 
 
 	ApiDrawing.prototype["GetClassType"]             =  ApiDrawing.prototype.GetClassType;

cell/view/WorksheetView.js

@@ -8525,8 +8525,8 @@
                         res = new AscCommonExcel.Border();
                         // Diagonal
                         res.d = makeBorder(val[c_oAscBorderOptions.DiagD] || val[c_oAscBorderOptions.DiagU]);
-                        res.dd = val[c_oAscBorderOptions.DiagD] ? true : false;
-                        res.du = val[c_oAscBorderOptions.DiagU] ? true : false;
+                        res.dd = !!val[c_oAscBorderOptions.DiagD];
+                        res.du = !!val[c_oAscBorderOptions.DiagU];
                         // Vertical
                         res.l = makeBorder(val[c_oAscBorderOptions.Left]);
                         res.iv = makeBorder(val[c_oAscBorderOptions.InnerV]);