Refactor store package
Remove OPML package

The plan is to provide to scripts in a contrib folder to support opml
and opml export. The cpod binary itself should not support opml
import and/or export though.
Compiles again.

And prints the title of all subscribed podcasts for testing purposes.
Add some todos
Write unix timestamp of latest episode to file
Simply ignore the error returned by fmt.Fscanf
Proof of concept
Fix infinte loop
Temporarily(?) removed -d command line flag
Rename waitgroup to wg
Added python3 script for opml import
Fixed error handling in newEpisodes() func
Create config dir if it doesn't exist yet
Added python2 opml export script
go fmt
Use python2 for cpod-import as well

Both theoretically work with python 3 too but the export script has some
issues with python 3 and I would like to use the same shebang with both
scripts.
Fixed util test