* RDoc are added. * In Report class,   * delegate_to_f0dbstat (private class method) is added, and 11 methods are     changed to use it.   * f0header, f0reference, f0query, f0database, f0dbstat methods are removed.     (They were methods for debugging.)   * in format0_split_stat_params, changed to use instance_eval (due to the     removal of Iteration#f0stat and Iteration#f0dbstat methods). * In F0dbstat class,   * method_after_parse_params and method_after_parse_dbstat     (private class methods) are deleted and methods are changed not to     use them. * AlwaysNil class (include Singleton) are added for internal use.   Users must not use the class directly. * In Iteration class,   * Default value of @f0dbstat is changed to AlwaysNil.instance.   * f0message, f0hitlist, f0stat, f0dbstat methods are removed.     (They were internal use only.)   * method_delegate_f0dbstat (private class method) are changed to     delegate_to_f0dbstat. * In Hit class,   * f0hitname method is removed. (It was only for debugging.) * In HSP class,   * f0score and f0alignment are removed. (They are methods for debugging.)
* RDoc are added.
* In Report class,
  * delegate_to_f0dbstat (private class method) is added, and 11 methods are
    changed to use it.
  * f0header, f0reference, f0query, f0database, f0dbstat methods are removed.
    (They were methods for debugging.)
  * in format0_split_stat_params, changed to use instance_eval (due to the
    removal of Iteration#f0stat and Iteration#f0dbstat methods).
* In F0dbstat class,
  * method_after_parse_params and method_after_parse_dbstat
    (private class methods) are deleted and methods are changed not to
    use them.
* AlwaysNil class (include Singleton) are added for internal use.
  Users must not use the class directly.
* In Iteration class,
  * Default value of @f0dbstat is changed to AlwaysNil.instance.
  * f0message, f0hitlist, f0stat, f0dbstat methods are removed.
    (They were internal use only.)
  * method_delegate_f0dbstat (private class method) are changed to
    delegate_to_f0dbstat.
* In Hit class,
  * f0hitname method is removed. (It was only for debugging.)
* In HSP class,
  * f0score and f0alignment are removed. (They are methods for debugging.)

csw/bioruby-phyloxml