Changed pandas-qt python2/3 friendly qtpandas.
Just changed the link to the abandoned repository python 2 only pandas-qt to the new functional Python 2/3 friendly qtpandas.
I don't know why appveyor failed. I just changed line in the docs are tests even required? @draperjames the failure is not related to your PR (we have some problems with appveyor at the moment), just look for travis

Can you provide some more explanation for this PR? Why the change? Is this a successor of the other project or a fork? Better maintained? Can you provide some more explanation for this PR? 
- Sure
### Why the change?
- pandas-qt doesn't support for python3. also the maintainer has shown no interest in it for a while.
### Is this a successor of the other project or a fork?
- This is a fork of the project but the namespace has been changed from `pandasqt` to `qtpandas`. We aren't happy about that either but there was no real way around it.
### Better maintained?
- We can only hope. @zbarge and I (@draperjames) are currently maintaining the repo on github and it's pip. So if we are just talking about people with access its twice as well maintained. We are looking for people that would be interested in helping build it out.  @jorisvandenbossche Is there anything I can do to move this along? > Is there anything I can do to move this along?

Nope, this is fine.

I just want to give @datalyze-solutions some time to react on this, as they added it initially. If there is no reaction in the short term, very happy to merge this!

cc @datalyze-solutions @kaotika You are aware and OK with this? 
By the way, another solution would be that you give @draperjames commit rights to the parent repoif you think that the changes they made in the fork are valuable, but don't have time to maintain it.

 @jorisvandenbossche I have tried to contact @kaotika and @datalyze-solutions several times over the span of a month with no response. If either entity wanted to to give @zbarge or myself commit rights to the parent we would happily merge our fork with the original repo and help to maintain the project. Thanks for your time. @draperjames waited long enough :-) 
BTW, thanks for taking this up! For some reason this PR was targeting 0.19.x branch instead of master, so applied the same commit on master as well: https://github.com/pandas-dev/pandas/commit/0d3ecfa8ba3930b688a6781c7f84138bc80da41a