Minor improvements to the Attach new project wizard

[Nicolas]

• On the "Choose a project" step, there is no way to use tab to access the project list. Pressing arrow keys (even if the list isn't focused!) makes the list scroll, doesn't change selected project.
• On the "Choose a project" step, the URL textfield should get focused automatically (or the project list maybe).
• Tab order seems wrong, first Previous, then all elements within the form, then Next and Cancel. I think the buttons at the bottom (previous, next, cancel) should get focused in the order they are shown.
• On "user information" step, I think selecting one of the radio buttons shouldn't focus the email field. It's OK for it to be focused by default, but not when changing the radio button. Try to do it only with keyboard to see why; tabbing to radio button and pressing an arrow key makes you lose focus over the radio buttons, you need to shift-tab to change it back.

[fweiler]

I like to add some comments about the annyoing selection behavior of the list. You can't scroll through the list with arrow keys, because focus is always transferred to the input field after selecting a project. Also (demonstrated by the screenshot) the list isn't layed out correctly.

[fweiler]

One additional comment: layout is corrected if you choose a project, click "next" and then go back by clicking "prev". Then a scrollbar appears on the project list and you can scroll the list with the mouse wheel also (arrow keys either don't work).

[romw]

(In [18483]) - MGR: First stab at making the ProjectList? control keyboard

navigatable. Tab order isn't quite right yet for the Project Info page or the Account Manager Info page, but that'll be another commit. refs #442

clientgui/

AccountManagerInfoPage?.cpp, .h ProjectInfoPage?.cpp, .h clientgui/ProjectListCtrl.cpp, .h

[romw]

Now fixed in 6.10.