Hi there,
first of all, thanks for this! After some research, I think this extension would be what I'm looking for, but I did encounter 2 issues for my use case (also found in yafg):

• stripping the title results in a KeyError if no title is specified
• if I don't strip the title, i got a "Figure 1: None" caption.

I would like to do a PR for this, but I was wondering what are your plans for this project...

• do you intend to continue/resume the development or should I start a new, independent, fork?
• which is the best branch/commit to continue your work? I see that ContentHack branch is ahead of the others, but I has many failing tests. Are they bugs to squash or there's some missing functionality still to implement?