translation of attributes containing dash not working
translation of attributes containing dash not working

the `text` attribute is set instead

Example which is not working without this patch:
```
<paper-input t="[label]profile:nameLabel;[error-message]profile:nameErrorMessage" value.two-way="name"></paper-input>
```
aurelia/i18n,milunka/aurelia-i18next,aurelia/i18n,milunka/aurelia-i18next,aurelia/i18n