Docs: Update support comments to follow the new syntax

The changes follow the spec proposed in:
https://github.com/jquery/contribute.jquery.org/issues/95#issuecomment-69379197

test/unit/css.js

@@ -1398,7 +1398,7 @@ QUnit.test(
 	}
 );
 
-// Support: IE < 11
+// Support: IE <=10 only
 // We have to jump through the hoops here in order to test work with "order" CSS property,
 // that some browsers do not support. This test is not, strictly speaking, correct,
 // but it's the best that we can do.

test/unit/deferred.js

@@ -535,7 +535,7 @@ QUnit[ window.console ? "test" : "skip" ]( "jQuery.Deferred.exceptionHook", func
 
 	window.console.warn = function( msg ) {
 
-		// Support: Chrome < 42
+		// Support: Chrome <=41 only
 		// Some Chrome versions newer than 30 but older than 42 display the "undefined is
 		// not a function" error, not mentioning the function name. This has been fixed
 		// in Chrome 42. Relax this test there.
@@ -590,7 +590,7 @@ QUnit[ window.console ? "test" : "skip" ]( "jQuery.Deferred.exceptionHook with s
 
 	window.console.warn = function( msg, stack ) {
 
-		// Support: Chrome < 42
+		// Support: Chrome <=41 only
 		// Some Chrome versions newer than 30 but older than 42 display the "undefined is
 		// not a function" error, not mentioning the function name. This has been fixed
 		// in Chrome 42. Relax this test there.

test/unit/deprecated.js

@@ -83,7 +83,7 @@ QUnit.test( "jQuery.parseJSON", function( assert ) {
 	assert.throws( function() {
 		var result = jQuery.parseJSON( "0101" );
 
-		// Support: IE9+
+		// Support: IE <=9 only
 		// Ensure base-10 interpretation on browsers that erroneously accept leading-zero numbers
 		if ( result === 101 ) {
 			throw new Error( "close enough" );

test/unit/event.js

@@ -1382,7 +1382,7 @@ QUnit.test( "Submit event can be stopped (#11049)", function( assert ) {
 	form.remove();
 } );
 
-// Support: iOS 7-9+
+// Support: iOS 7 - 9
 // iOS has the window.onbeforeunload field but doesn't support the beforeunload
 // handler making it impossible to feature-detect the support.
 QUnit[ /(ipad|iphone|ipod)/i.test( navigator.userAgent ) ? "skip" : "test" ](
@@ -2396,7 +2396,7 @@ QUnit.test( "event object properties on natively-triggered event", function( ass
 		$link = jQuery( link ),
 		evt = document.createEvent( "MouseEvents" );
 
-	// Support: IE 9-11 only
+	// Support: IE <=9 - 11 only
 	// IE requires element to be in the body before it will dispatch
 	$link.appendTo( "body" ).on( "click", function( e ) {
 
@@ -2867,7 +2867,7 @@ QUnit[ jQuery.fn.click ? "test" : "skip" ]( "Event aliases", function( assert )
 	} );
 } );
 
-// Support: IE9 only
+// Support: IE <=9 only
 // https://msdn.microsoft.com/en-us/library/hh801223(v=vs.85).aspx
 QUnit.test( "VML with special event handlers (trac-7071)", function( assert ) {
 	assert.expect( 1 );

test/unit/offset.js

@@ -540,7 +540,7 @@ QUnit.test( "fractions (see #7730 and #7885)", function( assert ) {
 
 	result = div.offset();
 
-	// Support: Chrome 45-46+
+	// Support: Chrome <=45 - 46
 	// In recent Chrome these values differ a little.
 	assert.ok( Math.abs( result.top - expected.top ) < 0.25, "Check top within 0.25 of expected" );
 	assert.equal( result.left, expected.left, "Check left" );