Log Message:
Changes:

* Updated documentation for MP3::Tag, MP3::Tag::ID3v1, MP3::Tag::ID3v2 and \ 
MP3::Tag::ID3v2-Data

* Renamed some functions. The old names will still work, but try to use the new \ 
names.
  The following names were changed:

  - MP3::Tag::getTags() to MP3::Tag::get_tags()
  - MP3::Tag::newTag() to MP3::Tag::new_tag()
  - MP3::Tag::ID3v1::removeTag() to MP3::Tag::ID3v1::remove_tag()
  - MP3::Tag::ID3v1::writeTag() to MP3::Tag::ID3v1::write_tag()
  - MP3::Tag::ID2v2::getFrameIDs() to MP3::Tag::ID3v2::get_frame_ids()
  - MP3::Tag::ID2v2::getFrame() to MP3::Tag::ID3v2::get_frame()

* Bugfix for ID3v2.pm:
  - getFrame() returned "undef" as a string instead of simple undef
  - artist() produced an error when TPE1 is missing in TAG

* Bugfix for Tag.pm:
  - DESTROY() checked only if $mp3->obj{filename} exists and not if it is \ 
defined before trying to
    close it
  - autoinfo() returns now a hash ref or an array as noted in the documentation

* Bugfix for ID3v1.pm:
  - genres() expected an id3v1-object as first parameter and a genre
    only as second parameter. Now the object can be omitted as in a call like
    MP3::Tag::ID3v1->genres($genre) used by Tag.pm and ID3v2.pm

* bugfix for File.pm:
  - Filenames may contain surrounding whitespaces now