merged admin, help and settings to settings

admin/ajax/changepassword.php

admin/appinfo/app.php

admin/css/apps.css

admin/css/users.css

admin/l10n/da.php

admin/l10n/de.php

admin/l10n/es.php

admin/l10n/fr.php

admin/l10n/nl.php

admin/l10n/pl.php

admin/system.php

admin/templates/system.php

apps/contacts/appinfo/app.php

help/appinfo/app.php

help/css/help.css

help/l10n/bg_BG.php

help/l10n/da.php

help/l10n/de.php

help/l10n/es.php

help/l10n/fr.php