Merge branch 'danielnass-hotfix/android-keyboard' into 3.x

js/inputmask.js

@@ -1726,7 +1726,9 @@
 
 				$.each(inputValue, function(ndx, charCode) {
 					var keypress = new $.Event("keypress");
-					keypress.which = charCode.charCodeAt(0);
+					if (charCode !== undefined) {
+						keypress.which = charCode.charCodeAt(0);
+					}
 					charCodes += charCode;
 					var lvp = getLastValidPosition(undefined, true),
 						lvTest = getMaskSet().validPositions[lvp],