HuaweiTech/cf-mysql-broker — pull request #1 by nkuacac (2014-08-07 04:22:17+00:00)
Title: correct uaa access_token err when token refresh

When token expired, browsing instance dashboard failed.
Following the code, it is the UaaSession.build refresh the token_info.
```
Before refresh, the access_token is symbol.
#"eyJhbGciOiJSUzI1
After refresh, the access_token is string.
#"eyJhbGciOiJ
```
The type of @info's key is changed. But the method access_token just return symbol type.

The pr reference cf-uaa-lib
https://github.com/cloudfoundry/cf-uaa-lib/blob/master/lib/uaa/token_issuer.rb#L38