Make a few unuseful DOMEntity properties readonly

[kocsismate]

Discussion: cdf2f3e#commitcomment-55396321

[salathe]

Can you clarify why making these readonly makes sense, I think I'm missing some details? My understanding is (correct me if I'm wrong): In DOM level 3, these properties are not readonly. In more recent specs (i.e. DOM Living Standard) the Entity interface is removed.

[salathe]

Please fix the associated comments, which currently state: readonly=no.

[kocsismate]

Can you clarify why making these readonly makes sense, I think I'm missing some details? My understanding is (correct me if I'm wrong): In DOM level 3, these properties are not readonly. In more recent specs (i.e. DOM Living Standard) the Entity interface is removed.

Short discussion: cdf2f3e#commitcomment-55396321

[salathe]

@kocsismate Thanks for the reference to the comment that prompted this change. A link back to that would have been useful in this PR's description or the commit message.

(Aside: I find it impossible to keep track of these discussions/comments on GitHub. Urgh. 😞 )

[kocsismate]

Thanks for the reference to the comment that prompted this change. A link back to that would have been useful in this PR's description or the commit message.

Yes, I should probably make the discussion more visible by adding a link in the description. I didn't do it partly because GitHub displays a reference to the thread just below the description.