Merge branch 'hotfix/0.3.1'
Merge pull request #11 from eCrowdMedia/hotfix/0.3.1

Put Client Id in url query or payload body instead of `Authorization` header field to prevent `OPTIONS` request when every api called.
Merge branch 'master' of github.com:eCrowdMedia/OAuthAPI
Change version number
Merge pull request #14 from eCrowdMedia/hotfix/1.3.1

Change version number