Merge branch 'release/2.1.0.4' into develop

* release/2.1.0.4:
  version bump
Merge branch 'develop' of github.com:ttscoff/Slogger into develop

* 'develop' of github.com:ttscoff/Slogger:
Added timestamp option to LastFMLogger
build number bump
Merge branch 'release/2.1.0.5'

* release/2.1.0.5:
  build number bump
  Added timestamp option to LastFMLogger