Added site previewing

This will generate a local version of the Hugo site and serve it via the server

models/theme.go

@@ -8,6 +8,9 @@ type ThemeMeta struct {
 	// Indicates that this theme prefers posts have titles.
 	PreferTitle bool
 
+	// Indicates that the theme doesn't automatically put titles on pages
+	AddTitleToPages bool
+
 	// Page bundle for "blog" posts
 	BlogPostBundle string `json:"post_dir"`
 }