Updating authorize and token URLs for MSFT, according to #146
Fixing broken test for urlAccessToken()
Add test to cover Provider\Microsoft::urlAuthorize()
Added yandex and mailru providers
Merge pull request #177 from rakeev/patch-1

Two more providers added to the README
Merge pull request #167 from thephpleague/microsoft-oauth-endpoints

Updating authorize and token URLs for MSFT, according to #146
Updating Composer branch alias for master to 0.6.x-dev
Removing QQ and Weibo providers, as these link to a fork of
oauth2-client and not directly to individual provider packages
Alphabetically sort provider names