Strip tags from body for podcast xml

[fix #1]
homepage episode tags link to a tag page
Merge pull request #10 from mdb/tag_template

homepage episode tags link to a tag page
Comment out WIP size/length

[#4]
Change podcast titles to be 1: Name
Update cover art

[close #6]
Add README with cover art
Site design based on cover art

[#7]
Move episode layout to source/layouts/
Add Google Analytics
Update url for podcast permalinks
Change description to match website
Titles for episodes 1 and 2
Add placeholder for 3