Adding and moving a lot of components.

This is the main thrust of the library. I know it is a lot of changes,
but I was running out of time and had to hammer them all in.

bard/src/pages/mod.rs

@@ -0,0 +1,8 @@
+mod blog;
+mod post;
+mod root;
+
+
+pub use self::blog::Blog;
+pub use self::post::Post;
+pub use self::root::Root;