Major development update.

* Updated LICENSE, READMES/METADATA.md and TODO.md
* Added example blog to examples/
* Added preliminary Pygments support for embedding code in pages.
* Add preliminary Wordpress dump importer
* Expansions to template_tools and metadata to support Blog use case.

READMES/METADATA.md

@@ -15,6 +15,8 @@ On-disk meatdata is stored as a file along side the non-metadata file with the e
 
 All files define the following keys by default:
 
+relpath
+:  The relative path to the root of the site, useful for prepending to image `src=` and other resource paths such as CSS files and fonts in order to maintain locally viewable output.
 file_name
 :  The local path of the file
 file_path
@@ -60,6 +62,14 @@ author_email
 site_root
 :  The full URL for the root of this web site used for links and whatnot, with ending slash.
 
+Special Keys that can be defined, these change the processing in predictable ways:
+
+type
+: Define that the file that this metadata is applied to as a specific type from the type mapping table. Useful values are `passthrough` and `templatable` with obvious outcomes.
+wildcard_metadata
+: Define a dictionary of file globs (patterns which match files such as `*.txt`), with the value being a dictionary of additional metadata to apply to the matched files. This is generally
+defined at the top level of the project to make certain file patterns treated as special without having to give them their own metadata.
+
 
 ## CACHING STRATEGY ##