Add option to not show content date to templates

Set `noshowdate = true` in front matter of content to hide date.
Signed-off-by: Ethan Madison <ethan@ethanmad.com>

layouts/_default/list.html

@@ -11,8 +11,10 @@
 	{{ range .Data.Pages }}
 				<li><a class="doc-entry" href="{{ .RelPermalink }}">
 					<span class="doc-entry-title">{{ .Title }}{{ if .Draft }} #Draft{{ end }}</span>
+					{{ if not .Params.noshowdate }}
 					<span class="doc-entry-meta in-list">
 						(<time datetime="{{ .Date.Format "2006-01-02" }}">{{ .Date.Format "January 02, 2006" }}</time>)
+					{{ end }}
 					</span>
 				</a></li>
 	{{ end }}
@@ -25,4 +27,4 @@
 
 </div> <!-- /.row -->
 
-{{ partial "footer.html" . }}
\ No newline at end of file
+{{ partial "footer.html" . }}

layouts/_default/single.html

@@ -7,7 +7,9 @@
 				<a id="title"></a>
 				<h1 class="doc-entry-title">{{ .Title }}</h1>
 				<div class="doc-entry-meta">
+					{{ if not .Params.noshowdate }}
 					<span><time datetime="{{ .Date.Format "2006-01-02" }}">{{ .Date.Format "January 02, 2006" }}</time></span>
+					{{ end }}
 				</div>
 				<section>
 					{{ .Content }}
@@ -20,4 +22,4 @@
 
 </div> <!-- /.row -->
 
-{{ partial "footer.html" . }}
\ No newline at end of file
+{{ partial "footer.html" . }}