[JENKINS-11513] Change error message from 'number' to 'integer'

- hudson-behavior.js checks if value of INPUT.number is an integer
- HTML5 <input type=number> checks if value of INPUT is a number (including floating point)
- It's better to change error message for INPUT.number to 'integer'

war/src/main/webapp/scripts/hudson-behavior.js

@@ -666,10 +666,10 @@ var hudsonRules = {
 // validate required form values
     "INPUT.required" : function(e) { registerRegexpValidator(e,/./,"Field is required"); },
 
-// validate form values to be a number
-    "INPUT.number" : function(e) { registerRegexpValidator(e,/^(\d+|)$/,"Not a number"); },
+// validate form values to be an integer
+    "INPUT.number" : function(e) { registerRegexpValidator(e,/^(\d+|)$/,"Not an integer"); },
     "INPUT.positive-number" : function(e) {
-        registerRegexpValidator(e,/^(\d*[1-9]\d*|)$/,"Not a positive number");
+        registerRegexpValidator(e,/^(\d*[1-9]\d*|)$/,"Not a positive integer");
     },
 
     "INPUT.auto-complete": function(e) {// form field with auto-completion support