FLUID-5395: Expected keyboard and mouse error messages wrong when moving layout portlets to locked portlet

Description

Keyboard and mouse error messages should be as follows according to the Test-to-fail criteria :

Test 1: Mouse, Move Portlet Above Locked Portlet

Procedure
Open the browser and navigate to the specified URL
Using the mouse, hover over the title bar of one of the unlocked portlets
Using the mouse, press and hold the 'left-mouse-button' down
Using the mouse, drag the avatar above the locked portlet
Using the mouse, release the 'left-mouse-button' over a drop target
Expected Results
As the avatar is hovering over the locked portlet, an error message saying "This box cannot be placed above a locked box" should appear
The avatar should drop to the location of the drop target
Actual Results
As the avatar is hovering over the locked portlet, no error message appears
The avatar drops to the location of the drop target
Stop Test
Refresh the browser to return the page to its initial state

Test 2: Keyboard, Move Portlet Above Locked Portlet

Procedure
Open the browser and navigate to the specified URL
Using the keyboard, tap the 'tab' key until one of the portlets has focus
Using the keyboard, tap the 'i', 'j', 'k', 'm', or an 'arrow' until the portlet, directly below the locked portlet, has focus
Using the keyboard, hold the 'ctrl' key (on a Mac use the 'Apple' key)
Using the keyboard, while still holding down the 'ctrl' key use the navigation keys (see step 3) move the portlet underneath a locked portlet, then attempt to move the portlet upward and above the locked portlet
Expected Results
On attempting to move the portlet above the locked portlet, an error message saying "This box cannot be placed above a locked box" should appear
Actual Results
On attempting to move the portlet above the locked portlet, an error message saying "This element can not be placed here. The element underneath is locked." appears.
("can not" should be "cannot" and the directional "underneath is locked" instruction is confusing.)
Stop Test
Refresh the browser to return the page to its initial state

Environments

Mac OS 10.8.5 Firefox 29.0.1, Chrome 35.0.1916.114, Safari Version 6.1 (8537.71)