limit numpy & pandas versions

new in v1.6.0

ci:: this bcolz version is not supported by this conda channel

REL: Release 1.4.1

REL: add the readme back as the project long_description

Temp tag for internal deployment.

DOC: Remove note to edit pypirc.

DOC: Remove note to edit pypirc.

Merge pull request quantopian#2139 from quantopian/manifest-in

REL: Add .pxd files to MANIFEST.in

DOC: Add whatsnew for zipline 1.1.1 (quantopian#1868)

* DOC: Add whatsnew for 1.1.1

* DOC: Update type stubs