Update to 0.15
    
    - New upstream release 0.15
      - Migrate to Dist::Zilla
      - Return false from null adapter is_xxx methods (CPAN RT#64164)
      - Eliminate 'subroutine redefined' warning in case Log::Any::Adapter loaded
        before Log::Any::Test
      - Fix typo in lib/Log/Any/Adapter/Test.pm (CPAN RT#69850)
      - Fix version number in Log/Any.pm
      - Hide 'package Log::Any::Adapter' from PAUSE/Module::Metadata
    - If we're not bootstrapping, run the release tests too
    - Specify all dependencies
    - Package upstream LICENSE file
    - Drop %defattr, redundant since rpm 4.4
    - Make %files list more explicit
    - Don't need to remove empty directories from the buildroot
    - Use DESTDIR rather than PERL_INSTALL_ROOT
    - Don't use macros for commands
    - Drop redundant provides filter