Replace hardcoded title of lists and terms

Now the title for lists and terms is the same
as the name chosen for the menu entry.

layouts/_default/list.html

@@ -9,7 +9,7 @@
 		{{ if isset .Data "Term" }}
 			<h2>{{ .Data.Term }}</h2>
 		{{ else }}
-			<h2 class="page-title">All posts</h2>
+		<h2 class="page-title">{{ .Name }}</h2>
 		{{ end }}
 
 		<ul class="posts flat">

layouts/_default/terms.html

@@ -6,7 +6,7 @@
 	<div class="container wrapper tags">
 		{{ partial "head.html" . }}
 
-		<h1 class="page-title">All tags</h1>
+		<h1 class="page-title">{{ .Name }}</h1>
 
 		{{ $biggest := 1 }}
 		{{ $smallest := 1 }}