add docblocks, closes #1653

app/views/admin/sem_classes/_sem_type.php

app/views/admin/sem_classes/content_plugin.php

app/views/admin/sem_classes/details.php

app/views/admin/sem_classes/overview.php

app/views/admin/semester/edit.php

app/views/admin/semester/index.php

app/views/admin/semester/lock.php

app/views/admin/smileys/edit.php

app/views/admin/smileys/index.php

app/views/admin/smileys/statistics.php

app/views/admin/smileys/upload.php

app/views/admin/specification/_field.php

app/views/admin/specification/edit.php

app/views/admin/specification/index.php

app/views/admin/statusgroups/_edit_subgroupselect.php

app/views/admin/statusgroups/_group-nestable.php

app/views/admin/statusgroups/_group.php

app/views/admin/statusgroups/_members.php

app/views/admin/statusgroups/delete.php

app/views/admin/statusgroups/deleteGroup.php