Add harvester for DataFirst, University of Cape Town

[erinspace]

http://www.datafirst.uct.ac.za/

[fabianvf]

Oh, cool

[fabianvf]

Do they have any sort of API?

[fabianvf]

Think I figured out a way...

[erinspace]

@fabianvf progress on this?

[fabianvf]

no, it ended up being more difficult than anticipated to integrate, and the service went down for a little while, so I put it on hold while I worked on other priorities. The pull request is still up, if you'd like to look at it.