Loosen the version constraint of prompt_toolkitto avoid dependency about pyinquirer HOT 6 CLOSED

PyInquirer-1.0.3
| +-prompt-toolkit(version range:==1.0.14)
| | +-six(version range:>=1.9.0)
| | +-wcwidth(version range:*)
| +-pygments(version range:>=2.2.0)
| | +-coverage(version range:*)
| | +-nose(version range:*)
| | +-pyflakes(version range:*)
| | +-pylint(version range:*)
| | +-tox(version range:*)
| +-regex(version range:>=2016.11.21)

_**Direct downstream project:**_

mqtt-sentinel-0.8.2
| +-click(version range:==7.0)
| +-colorama(version range:==0.4.1)
| +-paho-mqtt(version range:==1.4.0)
| +-prompt-toolkit(version range:==1.0.14)
| | +-six(version range:>=1.9.0)
| | +-wcwidth(version range:*)
| +-pyinquirer(version range:==1.0.3)
| | +-prompt-toolkit(version range:==1.0.14)
| | | +-six(version range:>=1.9.0)
| | | +-wcwidth(version range:*)
| | +-pygments(version range:>=2.2.0)
| | | +-coverage(version range:*)
| | | +-nose(version range:*)
| | | +-pyflakes(version range:*)
| | | +-pylint(version range:*)
| | | +-tox(version range:*)
| | +-regex(version range:>=2016.11.21)
| +-requests(version range:==2.21.0)
| | +-certifi(version range:>=2017.4.17)
| | +-chardet(version range:<3.1.0,>=3.0.2)
| | +-idna(version range:>=2.5,<2.9)
| | +-urllib3(version range:>=1.21.1,<1.25)

infraless-0.0.6a0
| +-astroid(version range:==2.2.5)
| +-cement(version range:==3.0.4)
| +-colorama(version range:==0.4.1)
| +-colorlog(version range:==4.0.2)
| +-entrypoints(version range:==0.3)
| +-flake8(version range:==3.7.7)
| +-isort(version range:==4.3.20)
| | +-backports-functools-lru-cache(version range:*)
| | +-futures(version range:*)
| +-jinja2(version range:==2.10.1)
| | +-markupsafe(version range:>=0.23)
| +-lazy-object-proxy(version range:==1.4.1)
| +-markupsafe(version range:==1.1.1)
| +-mccabe(version range:==0.6.1)
| +-pprint(version range:==0.1)
| +-prompt-toolkit(version range:==1.0.14)
| | +-six(version range:>=1.9.0)
| | +-wcwidth(version range:*)
| +-pycodestyle(version range:==2.5.0)
| +-pyfiglet(version range:==0.8.post1)
| +-pyflakes(version range:==2.1.1)
| +-pygments(version range:==2.4.2)
| | +-coverage(version range:*)
| | +-nose(version range:*)
| | +-pyflakes(version range:*)
| | +-pylint(version range:*)
| | +-tox(version range:*)
| +-pyinquirer(version range:==1.0.3)
| | +-prompt-toolkit(version range:==1.0.14)
| | | +-six(version range:>=1.9.0)
| | | +-wcwidth(version range:*)
| | +-pygments(version range:>=2.2.0)
| | | +-coverage(version range:*)
| | | +-nose(version range:*)
| | | +-pyflakes(version range:*)
| | | +-pylint(version range:*)
| | | +-tox(version range:*)
| | +-regex(version range:>=2016.11.21)
| +-pylint(version range:==2.3.1)
| +-pyyaml(version range:==5.1.1)
| +-regex(version range:==2019.6.5)
| +-six(version range:==1.12.0)
| +-termcolor(version range:==1.1.0)
| +-typed-ast(version range:==1.4.0)
| +-wcwidth(version range:==0.1.7)
| +-wrapt(version range:==1.11.1)
| +-yapf(version range:==0.27.0)

protomate-0.4.8
| +-colorama(version range:==0.4.1)
| +-loguru(version range:==0.3.1)
| | +-colorama(version range:>=0.3.4)
| | +-win32-setctime(version range:>=1.0.0)
| +-prompt-toolkit(version range:==2.0.9)
| | +-six(version range:>=1.9.0)
| | +-wcwidth(version range:*)
| +-pyfiglet(version range:==0.8.post1)
| +-pygithub(version range:==1.43.7)
| +-questionary(version range:==1.1.1)
| | +-prompt-toolkit(version range:<3,>=2.0)
| | | +-six(version range:>=1.9.0)
| | | +-wcwidth(version range:*)
| +-termcolor(version range:==1.1.0)