Replace requirements.txt to setup.py
Merge branch 'master' into setup.py
Update README.rst
Move `bpython` to local-specific requirements

I don't know why bpython is needed in the production.
Merge remote-tracking branch 'origin/master' into setup.py

Conflicts:
	README.rst
	requirements/_base.txt
Update README.rst
Add MANIFEST.in

`python setup.py sdist` works. But `bdist` command doesn't work.
It seems that `bdist` doesn't read `MANIFEST.in` info... need to fix it.
Fix the install instruction
Remove unrelated `bpython` package

This is just an utility.
Merge pull request #1 from smartstudy/setup.py

requirements.txt를 setup.py로 대체