Add test for complex lists for Pandoc output

Remove that caveat from manual -- Doesn't seem to apply much anymore as
the Pandoc output seems to work with Blackfriday in all these tests.

doc/ox-hugo-manual.org

@@ -2143,12 +2143,16 @@ another bit of blah with a footnote citation.[fn:1]
 {{{test-search(citations)}}}
 
 Also see [[https://pandoc.org/MANUAL.html#citations][Pandoc Manual -- Citations]] for more details.
-**** Caveat
-How the Pandoc Citations support works is that:
+**** How Pandoc Citations work
 1. ~ox-hugo~ first exports the Org file/subtree to a Markdown file as
    usual.
 2. ~pandoc~ then expands the ~@foo~ citations in that file and
  *rewrites* the whole Markdown file from the AST parsed by it.
+***** COMMENT
+/Below caveat shouldn't apply now. Pandoc output seems to be pretty
+much Blackfriday-compatiable now -- <2018-07-20 Fri>/
+
+-----
 
 /Mostly/ this would work fine.
 

test/site/content-org/all-posts.org

@@ -4639,6 +4639,29 @@ Text not containing *Markdown*
 #+begin_src emacs-lisp
 (message "Hello World")
 #+end_src
+*** Lists Galore
+- item1 in list
+- item2 in list. The following list is in a separate list body.
+
+
+- L1 -- foo1
+- L1 -- foo2
+  - L2 -- bar1
+  - L2 -- bar2
+    + L3 -- baz1
+    + L3 -- baz2
+      - L4 -- zoo1
+      - L4 -- zoo2
+        1. L5 -- numbered1
+        2. L5 -- numbered2
+      - L4 -- zoo1
+      - L4 -- zoo2
+    + L3 -- baz1
+    + L3 -- baz2
+  - L2 -- bar1
+  - L2 -- bar2
+- L1 -- foo1
+- L1 -- foo2
 ** Citations Example (YAML)                                            :yaml:
 :PROPERTIES:
 :EXPORT_HUGO_FRONT_MATTER_FORMAT: yaml

test/site/content/posts/citations-example-toml.md

@@ -56,6 +56,31 @@ Some text.
 (message "Hello World")
 ```
 
+## Lists Galore
+
+-   item1 in list
+-   item2 in list. The following list is in a separate list body.
+
+<!--listend-->
+-   L1 -- foo1
+-   L1 -- foo2
+    -   L2 -- bar1
+    -   L2 -- bar2
+        -   L3 -- baz1
+        -   L3 -- baz2
+            -   L4 -- zoo1
+            -   L4 -- zoo2
+                1.  L5 -- numbered1
+                2.  L5 -- numbered2
+            -   L4 -- zoo1
+            -   L4 -- zoo2
+        -   L3 -- baz1
+        -   L3 -- baz2
+    -   L2 -- bar1
+    -   L2 -- bar2
+-   L1 -- foo1
+-   L1 -- foo2
+
 ## References {#references}
 
 <div id="refs" class="references">