Freshly cloned Agreement Generator crashes

[bjoernwe]

Hi! I wanted to test the Agreement Generator. Clicked NEXT in every dialog but finally it crashes:

Traceback (most recent call last):
  File "/usr/lib/python3.6/tkinter/__init__.py", line 1702, in __call__
    return self.func(*args)
  File "make_agreement.py", line 339, in get_answer
    self.next_decision()
  File "make_agreement.py", line 380, in next_decision
    self.next_decision()
  File "make_agreement.py", line 380, in next_decision
    self.next_decision()
  File "make_agreement.py", line 356, in next_decision
    question_data = self.current_set.pop(0)
IndexError: pop from empty list
/usr/local/lib/python3.6/dist-packages/datapackage-1.3.2-py3.6.egg/datapackage/resource.py:408: UserWarning: Property "resource.table" is deprecated. Please use "resource.iter/read" directly.
  UserWarning)
Traceback (most recent call last):
  File "make_agreement.py", line 564, in <module>
    main()
  File "make_agreement.py", line 558, in main
    create_custom(fp, args.agreement_type)
  File "make_agreement.py", line 176, in create_custom
    base_data[name] = resource.table.read(keyed=True)
  File "/usr/local/lib/python3.6/dist-packages/tableschema-1.1.0-py3.6.egg/tableschema/table.py", line 133, in read
    for count, row in enumerate(rows, start=1):
  File "/usr/local/lib/python3.6/dist-packages/tableschema-1.1.0-py3.6.egg/tableschema/table.py", line 77, in iter
    self.__stream.open()
  File "/usr/local/lib/python3.6/dist-packages/tabulator-1.14.0-py3.6.egg/tabulator/stream.py", line 211, in open
    self.__extract_sample()
  File "/usr/local/lib/python3.6/dist-packages/tabulator-1.14.0-py3.6.egg/tabulator/stream.py", line 353, in __extract_sample
    row_number, headers, row = next(self.__parser.extended_rows)
  File "/usr/local/lib/python3.6/dist-packages/tabulator-1.14.0-py3.6.egg/tabulator/parsers/csv.py", line 97, in __iter_extended_rows
    sample, dialect = self.__prepare_dialect(self.__chars)
  File "/usr/local/lib/python3.6/dist-packages/tabulator-1.14.0-py3.6.egg/tabulator/parsers/csv.py", line 108, in __prepare_dialect
    sample.append(next(stream))
  File "/usr/lib/python3.6/encodings/cp1252.py", line 23, in decode
    return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x90 in position 3229: character maps to <undefined>

It also breaks when trying to run with templates (python3 make_agreement.py -a plain -p ./templates/plain.j2):

  File "make_agreement.py", line 564, in <module>
    main()
  File "make_agreement.py", line 536, in main
    create_custom(args.parse, args.agreement_type)
  File "make_agreement.py", line 166, in create_custom
    base_data = json.load(base_fp)
  File "/usr/lib/python3.6/json/__init__.py", line 299, in load
    parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
  File "/usr/lib/python3.6/json/__init__.py", line 354, in loads
    return _default_decoder.decode(s)
  File "/usr/lib/python3.6/json/decoder.py", line 339, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/lib/python3.6/json/decoder.py", line 355, in raw_decode
    obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 1 column 2 (char 1)```