Add PyPI shields to README
Add feature to notify about travis builds on gitter
Change on_success to always
Revert on_success back to never
Merge pull request #7434 from skirpichev/pypi-badgets

Add PyPI shields to README
Merge pull request #7435 from debugger22/travis_gitter_webhook

Add feature to notify about travis builds on Gitter
fix redirection links
This work was started by Taranjeet Singh <reachtotj@gmail.com>