TypeError: the JSON object must be str, not 'bytes'

Nobody has claimed this yet.

I know you're busy right now, but just wanted to note that for 1.13.1 the pip install doesn't work.

I get the following error(s);

I am trying to export for texture size 6, because this uses up way less space than if I were to run mapcrafter with 12 or 16.

```
casper@casper-Lenovo-ideapad-510-15ISK:~/blockcrafter$ blockcrafter-export -a ~/client.jar -o blocks -t 6
WARNING: Traceback (most recent call last):
File "/home/casper/.local/bin/blockcrafter-export", line 11, in
load_entry_point('blockcrafter==1.0', 'console_scripts', 'blockcrafter-export')()
File "/home/casper/.local/lib/python3.5/site-packages/blockcrafter/export.py", line 217, in main
app.run()
File "/home/casper/.local/lib/python3.5/site-packages/vispy/app/_default_app.py", line 62, in run
return default_app.run()
File "/home/casper/.local/lib/python3.5/site-packages/vispy/app/application.py", line 142, in run
return self._backend._vispy_run()
File "/home/casper/.local/lib/python3.5/site-packages/vispy/app/backends/_qt.py", line 229, in _vispy_run
return app.exec_()
File "/home/casper/.local/lib/python3.5/site-packages/vispy/app/backends/_qt.py", line 436, in event
out = super(QtBaseCanvasBackend, self).event(ev)
File "/home/casper/.local/lib/python3.5/site-packages/vispy/app/backends/_qt.py", line 708, in paintGL
self._vispy_canvas.events.draw(region=None)
File "/home/casper/.local/lib/python3.5/site-packages/vispy/util/event.py", line 455, in __call__
self._invoke_callback(cb, event)
File "/home/casper/.local/lib/python3.5/site-packages/vispy/util/event.py", line 475, in _invoke_callback
self, cb_event=(cb, event))
<< caught exception here: >>
File "/home/casper/.local/lib/python3.5/site-packages/vispy/util/event.py", line 471, in _invoke_callback
cb(event)
File "/home/casper/.local/lib/python3.5/site-packages/blockcrafter/export.py", line 188, in on_draw
blockstates = self.assets.blockstates
File "/home/casper/.local/lib/python3.5/site-packages/blockcrafter/mcmodel.py", line 361, in blockstates
blockstates.append(self.get_blockstate(prefix + ":" + name))
File "/home/casper/.local/lib/python3.5/site-packages/blockcrafter/mcmodel.py", line 347, in get_blockstate
return Blockstate(self, prefix, name, json.loads(self.source.load_file(path)), properties=properties)
File "/usr/lib/python3.5/json/__init__.py", line 312, in loads
s.__class__.__name__))
TypeError: the JSON object must be str, not 'bytes'
ERROR: Invoking > for DrawEvent
Segmentation fault (core dumped)
```
Also, I have never used docker, it might be nice in the future to add a bit more documentation on how to run the docker? (sorry if I'm just dense and don't know how to use docker).

Edit1; This seems to be an issue with python3.5 specifically?; https://github.com/fabienvauchelles/scrapoxy-python-api/issues/5
Edit2; I have solved the issue, in some cases the object that you tried the load was a bytes object, but not always. I will do a pull request soonish.
Edit3; Did a pull request to fix this issue :-)

Start with the blockcrafter-export entry point and the traceback locations in blockcrafter/export.py and blockcrafter/mcmodel.py, especially get_blockstate and source.load_file. Reproduce the export with texture size 6 under Python 3.5. Done means the export no longer raises the JSON bytes TypeError; note that the issue body says the reporter already made a pull request.

Written by the indexing model from the issue text.