[Lazarus] Class completion in reverse - remove method implementation

[Graeme Geldenhuys]

Daniel,

Autoselect wil select the whole text in the control.

What happens if you:
- select the control
- do Tab
- then do Shift-Tab

This will deselect, then re-select the control.
On Linux/GTK2 it will nicely select the first editable char in a
MaskEdit if you do so.

I can't test with a DBEdit, since I have no database package installed
in my current Lazarus.

(Try my updated working copy on
http://home-1.tiscali.nl/~knmg0017/devel/maskedit.pp)

Bart