Build: Put all AMD modules in "src/" in strict mode

Fixes gh-3073

src/core/DOMEval.js

@@ -1,6 +1,8 @@
 define( [
 	"../var/document"
 ], function( document ) {
+	"use strict";
+
 	function DOMEval( code, doc ) {
 		doc = doc || document;
 

src/core/access.js

@@ -2,6 +2,8 @@ define( [
 	"../core"
 ], function( jQuery ) {
 
+"use strict";
+
 // Multifunctional method to get and set values of a collection
 // The value/s can optionally be executed if it's a function
 var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {

src/core/init.js

@@ -6,6 +6,8 @@ define( [
 	"../traversing/findFilter"
 ], function( jQuery, document, rsingleTag ) {
 
+"use strict";
+
 // A central reference to the root jQuery(document)
 var rootjQuery,
 

src/core/parseHTML.js

@@ -8,6 +8,8 @@ define( [
 	"./support"
 ], function( jQuery, document, rsingleTag, buildFragment, support ) {
 
+"use strict";
+
 // Argument "data" should be string of html
 // context (optional): If specified, the fragment will be created in this context,
 // defaults to document

src/core/ready-no-deferred.js

@@ -3,6 +3,8 @@ define( [
 	"../var/document"
 ], function( jQuery, document ) {
 
+"use strict";
+
 var readyCallbacks = [],
 	readyFiring = false,
 	whenReady = function( fn ) {

src/core/ready.js

@@ -4,6 +4,8 @@ define( [
 	"../deferred"
 ], function( jQuery, document ) {
 
+"use strict";
+
 // The deferred used on DOM ready
 var readyList = jQuery.Deferred();
 

src/core/support.js

@@ -3,6 +3,8 @@ define( [
 	"../var/support"
 ], function( document, support ) {
 
+"use strict";
+
 // Support: Safari 8 only
 // In Safari 8 documents created via document.implementation.createHTMLDocument
 // collapse sibling forms: the second one becomes a child of the first one.

src/core/var/rsingleTag.js

@@ -1,4 +1,5 @@
 define( function() {
+	"use strict";
 
 	// Match a standalone tag
 	return ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );