Hides unwanted console output caused by creating new directories
Logs the title of each podcast entry when it is downloaded
Adds support for Atom feeds
Fixes bug where titles with newlines broke the CSV file

- If the XML had newlines in the podcast entry's title, the newline would
  be output in the CSV.
- CSV should theoretically be able to handle strings with newlines, but
  for whatever reason they weren't being parsed correctly the next time
  they were loaded by powershell
- the solution implemented here is to remove all leading and trailing
  whitespace from podcast entries' titles