huge refactoring of content and theme

- de-personalize the theme as much as possible, moving personal info into config.toml parameters
- extract hard-coded content out layouts and into actual /content (especially home page and all of its assets)
- include full text of posts in RSS feed (aka making the world a better place)
- use abstract layout for both video pages (/leo and /birthday)

content/leo/index.md

@@ -0,0 +1,15 @@
+---
+title: "Facebook App on \"The Lab with Leo Laporte\""
+date: 2007-01-01 00:01:01-0400
+url: "/leo"
+image: "thumb.png"
+type: videos
+layout: video
+resources:
+- src: "leo.mp4"
+- src: "leo.webm"
+- src: "images/thumb.png"
+- src: "subs.en.vtt"
+---
+
+Video is property of [Leo Laporte](https://leolaporte.com/) and [G4techTV / HOW TO Channel](https://en.wikipedia.org/wiki/G4techTV). © 2007.