Pledge Authorization section missing

[toerless]

rev -16 section 5.2 has an unresolved EDNOTE pointing to a section for "Pledge Authorization". That section was last D.1.3.2. in -07 and was then removed when D.* was integrated back and the rest of D was removed in -08.

I can not find offhand any stubs of D.1.3.2 integrated elsewhere into the text, so i would suggest to reintroduce an appropriate subset of that section (aka: anything you think is uncontentuous).

[mcr]

Closed by introduction of new 5.3 section with text rescued from D.1.3.2.