Reverting 101051e partially to avoid struct collision of Start parameter

Author: andygrunwald

changes.go

@@ -510,9 +510,6 @@ type QueryOptions struct {
 	// The n parameter can be used to limit the returned results.
 	// If the n query parameter is supplied and additional changes exist that match the query beyond the end, the last change object has a _more_changes: true JSON field set.
 	Limit int `url:"n,omitempty"`
-
-	// The S or start query parameter can be supplied to skip a number of changes from the list.
-	Start int `url:"start,omitempty"`
 }
 
 // QueryChangeOptions specifies the parameters to the ChangesService.QueryChanges.