init
Allow parameterization of wget

This is particularly useful for marking items read. Just run:

POD_WGET="echo wget" ./bashpodder.shell

...and all currently unread items will be logged as read, while
only faking the actual getting of them, which might have amounted
to several gigabytes and hours of downloads.
Merge remote-tracking branch 'github/master'

Conflicts:
	.gitignore
	bashpodder.shell