convert blocks to simple dict

fgs/pandoc.py

@@ -51,7 +51,7 @@ def run_pandoc(source, base="markdown", extensions=[], extra_args=[]):
     # TODO TOC
     #contentmetadata["toc"] = build_toc(n["toc_list"].copy())
 
-    blocks = json.dumps(blocks, cls=ElementEncoder) # TODO use json.loads() otherwise this is just a string
+    blocks = json.loads(json.dumps(blocks, cls=ElementEncoder)) # Reduce to 'simple' dict, which can be converted to JSON in Jinja2.
 
     return (blocks, contentmetadata)