Feature

+ Fix: Source encoding problem
+ Feature: Basic post reply
You could setFormHash in cl.monsoon.s1next.model.Account like setUsername(String)
```
/**
 * Store user info when logged before.
 */
public void setUsername(String username) {
    this.username = username;

    if (Config.getUsername() == null && !TextUtils.isEmpty(username)) {
        Config.setUsername(username);
    }
}
```

Form hash won't change and exists in every response (get/post), so it is better to set it when parsing JSON.