Standardize links to wiki help pages.

* Fix inconsistencies in how wiki pages were linked.

* Link directly to the wiki instead of to a title search that is expected
  to redirect to the wiki.

app/views/posts/partials/common/_secondary_links.html.erb

@@ -14,5 +14,5 @@
   <% if CurrentUser.can_approve_posts? %>
     <%= subnav_link_to "Moderate", moderator_post_queue_path %>
   <% end %>
-  <%= subnav_link_to "Help", wiki_pages_path(:title => "help:posts") %>
+  <%= subnav_link_to "Help", wiki_page_path("help:posts") %>
 <% end %>

app/views/posts/partials/index/_blacklist.html.erb

@@ -1,5 +1,5 @@
 <div id="blacklist-box" class="sidebar-blacklist">
-  <h1>Blacklisted (<%= link_to "help", wiki_pages_path(:title => "help:blacklists") %>)</h1>
+  <h1>Blacklisted (<%= link_to_wiki "help", "help:blacklists" %>)</h1>
   <ul id="blacklist-list" class="list-bulleted"></ul>
   <%= link_to "Disable all", "#", :id => "disable-all-blacklists", :style => "display: none;" %>
   <%= link_to "Re-enable all", "#", :id => "re-enable-all-blacklists", :style => "display: none;" %>

app/views/posts/partials/index/_posts.html.erb

@@ -6,15 +6,15 @@
   <% if post_set.hidden_posts.present? %>
     <div class="fineprint hidden-posts-notice">
       <% if post_set.banned_posts.present? %>
-        <%= post_set.banned_posts.size %> post(s) were removed from this page at the artist's request (<%= link_to "learn more", wiki_pages_path(title: "banned_artist") %>).<br>
+        <%= post_set.banned_posts.size %> post(s) were removed from this page at the artist's request (<%= link_to_wiki "learn more", "banned_artist" %>).<br>
       <% end %>
 
       <% if post_set.censored_posts.present? %>
-        <%= post_set.censored_posts.size %> post(s) on this page require a <%= link_to "Gold account", new_user_upgrade_path %> to view (<%= link_to "learn more", wiki_pages_path(title: "help:censored_tags") %>).<br>
+        <%= post_set.censored_posts.size %> post(s) on this page require a <%= link_to "Gold account", new_user_upgrade_path %> to view (<%= link_to_wiki "learn more", "help:censored_tags" %>).<br>
       <% end %>
 
       <% if post_set.safe_posts.present? %>
-        <%= post_set.safe_posts.size %> post(s) on this page were hidden by safe mode (<%= Danbooru.config.app_name %>). Go to <%= link_to "Danbooru", "https://danbooru.donmai.us" %> or disable safe mode to view (<%= link_to "learn more", wiki_pages_path(title: "help:user_settings") %>).<br>
+        <%= post_set.safe_posts.size %> post(s) on this page were hidden by safe mode (<%= Danbooru.config.app_name %>). Go to <%= link_to "Danbooru", "https://danbooru.donmai.us" %> or disable safe mode to view (<%= link_to_wiki "learn more", "help:user_settings" %>).<br>
       <% end %>
     </div>
   <% end %>

app/views/posts/partials/show/_embedded.html.erb

@@ -3,7 +3,7 @@
 <% elsif post.levelblocked? -%>
   <p><%= link_to("You need a gold account to see this image", new_user_upgrade_path) %>.</p>
 <% elsif post.safeblocked? -%>
-  <p>This image is unavailable on safe mode (<%= Danbooru.config.app_name %>). Go to <%= link_to("Danbooru", "https://danbooru.donmai.us") %> or disable safe mode to view (<%= link_to("learn more", wiki_pages_path(title: "help:user_settings")) -%>).</p>
+  <p>This image is unavailable on safe mode (<%= Danbooru.config.app_name %>). Go to <%= link_to("Danbooru", "https://danbooru.donmai.us") %> or disable safe mode to view (<%= link_to_wiki "learn more", "help:user_settings" %>).</p>
 <% elsif post.is_flash? -%>
   <%= render("posts/partials/show/flash", post: post) -%>
 <% elsif post.is_video? -%>

app/views/posts/partials/show/_notices.html.erb

@@ -1,6 +1,6 @@
 <% if post.is_flagged? && !post.is_deleted? && post.flags.any? %>
   <div class="notice notice-small post-notice post-notice-flagged">
-    <p>This post was flagged for review (<%= link_to "learn more", wiki_pages_path(:title => "howto:flag") %>): </p>
+    <p>This post was flagged for review (<%= link_to_wiki "learn more", "howto:flag" %>): </p>
 
     <%= render "post_flags/reasons", flags: post.flags %>
   </div>
@@ -33,9 +33,9 @@
   <div class="notice notice-small post-notice post-notice-pending">
     <% if post.is_pending? %>
       This post is pending approval. 
-      (<%= link_to "learn more", wiki_pages_path(:title => "about:mod_queue") %>)
+      (<%= link_to_wiki "learn more", "about:mod_queue" %>)
     <% else %>
-      This post was flagged and is pending approval (<%= link_to "learn more", wiki_pages_path(:title => "about:mod_queue") %>)
+      This post was flagged and is pending approval (<%= link_to_wiki "learn more", "about:mod_queue" %>)
     <% end %>
 
     <%= render "post_disapprovals/counts", :disapprovals => post.disapprovals, :post => post %>

app/views/posts/show.html.erb

@@ -113,7 +113,7 @@
 
   <section id="comments">
     <% if !CurrentUser.user.is_builder? %>
-      <h2>Before commenting, read the <%= link_to "how to comment guide", wiki_pages_path(:search => {:title => "howto:comment"}) %>.</h2>
+      <h2>Before commenting, read the <%= link_to_wiki "how to comment guide", "howto:comment" %>.</h2>
     <% end %>
     <%= render "comments/partials/index/list", comments: @comments, post: @post, page: :post %>
   </section>