Fix bug in author params code, reported in issue #117.

layouts/partials/author-date.html

@@ -1,3 +1,3 @@
-{{ with $.Param "author" | default site.Params.author.name }}<span class="author" itemprop="author">{{ . }}</span>{{ end -}}
-{{ if and .Date (or ($.Param "author") site.Params.author.name) }} - {{ end -}}
+{{ with .Params.author | default site.Params.author.name }}<span class="author" itemprop="author">{{ . }}</span>{{ end -}}
+{{ if and .Date (or .Params.author site.Params.author.name) }} - {{ end -}}
 {{ with .Date }}<time class="created-date" datetime="{{ .Format "2006-01-02T15:04:05Z07:00" }}">{{ .Format ($.Param "dateformat" | default "2 January, 2006") }}</time>{{ end }}

layouts/partials/meta.html

@@ -5,7 +5,7 @@
 <meta name="description" content="{{ with (.Description | default (replaceRE "\n" " " (.Plain | truncate 170))) }}{{ . }}{{ end }}">
 <meta name="created" {{ printf "content=%q" (.Date.Format "2006-01-02T15:04:05-0700") | safeHTMLAttr }}>
 <meta name="modified" {{ printf "content=%q" (.Lastmod.Format "2006-01-02T15:04:05-0700") | safeHTMLAttr }}>
-{{ with $.Param "author" }}<meta name="author" content="{{ . }}">{{ end }}
+{{ with .Params.author | default site.Params.author.name }}<meta name="author" content="{{ . }}">{{ end }}
 {{ with $.Param "contact" }}<meta name="contact" content="{{ . }}">{{ end }}
 <meta property="og:site_name" content="{{ site.Title }}">
 <meta property="og:title" content="{{ .Title }}">

layouts/partials/meta_json_ld.html

@@ -33,7 +33,7 @@
     {{ with $.Param "image" -}}
     "image" : {{ . | absURL }},
     {{ end -}}
-    {{ with $.Param "author" -}}
+    {{ with .Params.author | default site.Params.author.name -}}
     "author": {
       "@type": "Person",
       "name": {{ . }}