Add CKUT outstanding issues

[shawnCaza]

Based on a request here, I have added CKUT podcast feeds to the site. Some outstanding issues that arose in the process:

• Search behaves in unexpected ways when certain search terms are used. EX. searching for 'am' produces multiple results for a single show, and these results are not fully cleared when the search text is deleted.

• The date of the added show doesn't include a time. Unexpected difficulty getting the modified date from the mp3 header.

• In the apple podcast app, episodes do not always successfully play on the first attempt.

[shawnCaza]

Solved the date issue, by parsing it out of the mp3 file name.

Not playing on first attempt was due to multiple redirects on the mp3 download link.

[shawnCaza]

Search issues fixed by re-scraping episodes for two shows where duplicate newest ep_date were present.

[shawnCaza]

Add an index to the episodes table in the DB to enforce show_id and ep_date as unique value pairs. This will eliminate the possibility of a show with multiple episodes sharing the same date and time.