square/retrofit — pull request #200 by adriancole (2013-05-09 05:28:58+00:00)
Title: add new @Headers and @Header annotations

fix issue #198: add new @Headers and @Header annotations

tested with the below client:
```
@Headers({
"API-Version: 3.3.8",
"Content-Type: application/json"
})
static interface DynECTSession {
@POST("/Session")
Session login(@SingleEntity Credentials creds);

@DELETE("/Session")
Void logout(@Header("Auth-Token") String token);
}
```