lynndylanhurley/devise_token_auth — pull request #95 by jartek (2014-12-29 08:18:38+00:00)
Title: Make keys symbolized

I'm currently getting a null expiry header,

https://github.com/lynndylanhurley/devise_token_auth/blob/master/app/models/devise_token_auth/concerns/user.rb#L163

Changing it to a symbol fixed it, so i assumed that the same issue would occur for all places where we used ```self.tokens[client_id]['']```.