add docblocks, closes #1649

app/views/activityfeed/configuration.php

app/views/start/_widget.php

app/views/start/add.php

app/views/start/edit_defaults.php

app/views/start/edit_mail_address.php

app/views/start/index.php

app/views/study_area/tree.php

app/views/studygroup/browse.php

app/views/terms/index.php

app/views/tfa/index.php

app/views/tfa/setup.php

app/views/tour/admin_conflicts.php

app/views/tour/admin_details.php

app/views/tour/admin_overview.php

app/views/tour/edit_step.php

app/views/tour/import.php

app/views/web_migrate/index.php

app/views/wiki/change_courseperms.php

app/views/wiki/change_page_config.php

app/views/wiki/create.php