Update form.php

Added Yii::t for spaceholder
Update spaceChooser.php

Added Yii::t for placeholder
Update recoverPassword.php

Added Yii::t for placeholders
Update views_auth_recoverPassword.php

Added strings
Update views_auth_recoverPassword.php
Update views_auth_recoverPassword.php
Update widgets_views_spaceChooser.php

Added String
Update views_auth_login.php
Merge pull request #138 from jetwes/master

Added Internalization for some placeholders