* Fix for Pixiv changes

* Fix for artist/wiki pages for -names

app/logical/post_sets/artist.rb

@@ -9,6 +9,8 @@ module PostSets
     
     def posts
       ::Post.tag_match(@artist.name)
+    rescue ::Post::SearchError
+      ::Post.where("false")
     end
 
     def presenter

app/logical/post_sets/post.rb

@@ -29,6 +29,8 @@ module PostSets
       end
       
       @posts ||= ::Post.tag_match(tag_string).paginate(page)
+    rescue ::Post::SearchError
+      @posts = ::Post.where("false")
     end
     
     def has_artist?

app/logical/sources/strategies/pixiv.rb

@@ -42,7 +42,7 @@ module Sources
       def get_image_url_from_page(page)
         meta = page.search("meta[property=\"og:image\"]").first
         if meta
-          meta.attr("content").sub(/_m\./, ".")
+          meta.attr("content").sub(/_[ms]\./, ".")
         else
           nil
         end