simplify development.txt

development.txt

@@ -1,63 +1,2 @@
-alabaster==0.7.12
-appnope==0.1.0
-Babel==2.6.0
-backcall==0.1.0
-bleach==3.1.0
-certifi==2019.3.9
-cffi==1.12.3
-chardet==3.0.4
-colorama==0.4.1
-coverage==4.5.3
-decorator==4.4.0
-docutils==0.14
-idna==2.8
-imagesize==1.1.0
-ipdb==0.12
-ipython==7.5.0
-ipython-genutils==0.2.0
-jedi==0.13.3
-Jinja2==2.10.1
-MarkupSafe==1.1.1
-mock==3.0.5
-mysqlclient==1.4.2.post1
-nose==1.3.7
-packaging==19.0
-parso==0.4.0
-passlib==1.7.1
-pathlib2==2.3.3
-pexpect==4.7.0
-pg8000==1.13.1
-pickleshare==0.7.5
-pinocchio==0.4.2
-pkginfo==1.5.0.1
-plant==0.1.3
-prompt-toolkit==2.0.9
-psycopg2-binary==2.8.2
-ptyprocess==0.6.0
-pycparser==2.19
-Pygments==2.4.0
-PyNaCl==1.3.0
-pyparsing==2.4.0
-python-dateutil==2.8.0
-pytz==2019.1
-PyYAML==5.1
-readme-renderer==24.0
-rednose==1.3.0
-requests==2.21.0
-requests-toolbelt==0.9.1
-six==1.12.0
-snowballstemmer==1.2.1
-Sphinx==1.8.5
-sphinx-rtd-theme==0.4.3
-sphinxcontrib-websupport==1.1.0
-SQLAlchemy==1.3.3
-sure==1.4.11
-termstyle==0.1.11
-testing.common.database==2.0.3
-testing.postgresql==1.3.0
-tqdm==4.32.1
-traitlets==4.3.2
-twine==1.13.0
-urllib3==1.24.3
-wcwidth==0.1.7
-webencodings==0.5.1
+chemist==1.5.0
+sphinx>=2.0.0