IMPROVE. RadSpellChecker - add ability to modify the €œThe spelling check is completed€ text in the message box.

To reproduce:
- create a descendant of RadTextBox 
- add RadSpellChecker to the form
- try to check the value of the custom text box

IMPROVE. RadTextBox - add option to choose whether the NullText should be wrapped or not, when used in MultiLine text box
COMMENT: This functionality is supported by RadTextBoxControl. Please use it instead.

FIX. RadDateTimePicker - setting the value to null, should clear the selection

ADD. RadTextBox - there should be a mode whether the undo should bring back the previous word or to work for each character

ADD. RadTextBox - add redo functionality

Steps to reproduce:
1. Add a RadDateTimePicker to a form.
2. Set ShowUpDown to true.
3. Set NullDate to be DateTime.Now
4. Set MinValue to DateTime.Now.Date
5. Set MaxValue to DateTime.Now.AddDays(1).AddSeconds(-1)
6. Try to change the value and press tab to save the value. The value will be set to null.

Steps to reproduce:
1. Add a RadGridView with a browse column to a form
2. Add a new row.
3. Open the editor and type in a value.

After you close the editor you will see that the value is not updated.

1. Create a new project and add a button.
2. On its Click event show and dispose RadColorDialog form
3. Run the project and note how memory consumption increases

Despite the fact that the elements of RadTextBox have ToolTipText and AutoToolTip properties, one can't set the tooltip at design-time. We should consider whether we should continue using these properties or introduce a new method to allow for setting tooltips at design-time.

Resolution:
Open 'Edit UI elements' and set the Tooltip property of RadTextBoxItem 

To reproduce:
1. Drag RadColorDialog to a form
2. Set the SelectedColor and Show the form
3. Close the form, set another SelectedColor and Show the form again.
4. The result is that the circle position is wrong and the values in the editors are wrong.

The RadTextBox control should rise the PreviewKeyDown event.

if user sets the RadDateTimePicker.Checked property to False in the Form load, the editor appears as enabled and user is allowed to make changes.

ADD. RadDateTimePicker - add toggle state changed event for the check box

1. Create a new project
2. Add a button and on this button start a new form containing RadMarkupEditor
3. Open and close this form several times

FIX. RadSpinEditor's Text property should act the same way as the Text property of the element

FIX. RadSpinEditor - TextChanged of the control is not fired. Should fire in the same cases as the TextChanged event of the element.

According to MSDN controls should not change the focus when handling the Enter event

ADD. RadMaskedEditBox - add functionality to get the value of the control without the literals contained or the prompt chars

RadMaskedEditBox does not appear as a choice in the data source list of bound controls.