Update mappings for ins and del elements: UIA, IA2, ATK

[scottaohara]

Closes #141

Updates del and ins mappings for:

• UIA implementation commitment
• IA2
• ATK open issue to implement

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Preview | Diff

[joanmarie]

So regarding ATK/AT-SPI2. I took this issue as a prompt to do the API changes for ATK and AT-SPI2. 😄 I, of course, need code review and approval, but I don't think that will be a problem.

Once the new roles land in the APIs, then we'll need the user agents to use the new ATK roles. With this in mind, I'm not sure if you want to have the mappings point to the new ATK roles -- which will ultimately be implemented -- or point to ATK_ROLE_SECTION as you are currently.

[scottaohara]

@joanmarie I expected another update to these mappings once the ARIA equivalent roles land as well, so we can change to more specific ATK / AT-SPI2 roles once they land. That work?

[joanmarie]

@joanmarie I expected another update to these mappings once the ARIA equivalent roles land as well, so we can change to more specific ATK / AT-SPI2 roles once they land. That work?

Sure. I just wanted to update you so that you know we (GNOME, also known as Joanie) are finally moving forward on this so you're aware your spec will be needing an update. (In case I forget to tell you later.... Premature senility and all that. ;))

[stevefaulkner]

LGTM