v.1.0.1 - Bugfix release

Added

• CHANGELOG.md file, for documenting notable changes (this release note is copied from there).
• Documentation page about PodGen's roadmap.

Changed

• Organization of the documentation, along with other documentation
  improvements and updates.

Removed

• Support for Python 3.3, due to its age and lack of support.

Fixed

• UnicodeEncodeError when writing a podcast with non-ASCII characters to file
  in an environment where Python defaults to ASCII encoding, #65 .
• Incompatibility with unicode strings on Python 2.7.