Complying with edx-platform defaults

What's Changed

• add missing links for v0.1.3 and v0.1.4 by @OmarIthawi in #42
• Fix local tox not setting the correct pip Version by @shadinaif in #43
• Change behaviour of get_organization_for_user by @shadinaif in #44
• Bump version to 0.1.5 by @shadinaif in #45

Full Changelog: v0.1.4...v0.1.5