Update Unicode-Collate to CPAN version 1.08

  [DELTA]

1.08  Sat Dec  6 20:12:55 2014
    - DUCET is updated (for Unicode 7.0.0) as Collate/allkeys.txt.
    ! Please notice that allkeys.txt will be overwritten if you have had
      other allkeys.txt already.
    - The default UCA_Version is 30.
    - *.pl and *.pm are updated so that they have same the version number.