BUG: fix greedy date parsing in read_html
Also, `infer_types` now has no effect _for real_ :)

closes #7762
closes #7032

Weird that Travis failed again. The file is says it can't find sure seems to be there....
 Yeah not totally  sure what happened. I'm gonna take a look tokorrow morning. I tried to reproduce but I had to move on to other things today. 
 Ah, I think this is because I forgot to add it to the data files in `setup.py`. I'll just rename to `*.html`, that way it gets picked up
 @jreback @danielballan any (more) comments?
 i'll add a release note
 cc @clarkfitzg
 Looks ready to merge to me. I didn't know about `kwargs.setdefault`; that's nice.
 looks ok
 Merging 
