Release 0.7.4

• Improvement: (Flex) Added optional login functionality
• Improvement: (curses) Added Play Random function
• Improvement: (GTK) Added -d debug command line flag
• Improvement: (GTK) Showing checkboxes in episode number list (Play episode)
• Bugfix: (Qt) Fixed issue when closing with KDE 5/Qt 5
• Bugfix: (Kitsu) Fixed issue where using e-mail instead of username wouldn't work
• Bugfix: Fixed issue where Playing flag wasn't being cleared if show got
  ignored