Changed version number in preparation for a hot-fix tonight.
Merge branch 'development' into feature-failing-download-fix

* development:
  Changed version number in preparation for a hot-fix tonight.
Added content type to `HttpResponceStream`.
Fixed file name format.
Changed Formatable to DataFormat
Added Formattable interface and Formattables helper object.
Made Listenable implement the Formattable interface. Added default toString and default implementation.
Added implementation of Formattable interface to provide a clearer toString output.
Added ContentType to HttpResponceStream to fix #20.
Merge branch 'feature-better-toString' into development

* feature-better-toString:
  Added implementation of Formattable interface to provide a clearer toString output.
  Made Listenable implement the Formattable interface. Added default toString and default implementation.
  Added Formattable interface and Formattables helper object.
  Changed Formatable to DataFormat
Merge branch 'feature-failing-download-fix' into development

* feature-failing-download-fix:
  Fixed file name format.
  Added content type to `HttpResponceStream`.