HGKeeper

Move to using gi-docgen from a release rather than git

14 months ago, Gary Kramlich

e8a6fb25731f

Move to using gi-docgen from a release rather than git

Testing Done:
Pruned the subprojects and did a build.

Reviewed at https://reviews.imfreedom.org/r/2272/

Talkatu is versioned in [mercurial](https://www.mercurial-scm.org/) and is

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