sources: parse more profile url formats.

Add support for parsing these URL formats:

* https://www.artstation.com/felipecartin/profile
* https://www.deviantart.com/nlpsllp/gallery
* https://fantia.jp/asanagi
* https://www.lofter.com/front/blog/home-page/noshiqian
* https://www.lofter.com/app/xiaokonggedmx
* https://www.lofter.com/blog/semblance
* https://q.nicovideo.jp/users/18700356
* https://dic.nicovideo.jp/u/11141663
* https://3d.nicovideo.jp/users/109584
* https://3d.nicovideo.jp/u/siobi
* https://game.nicovideo.jp/atsumaru/users/7757217
* https://www.pixiv.net/user/13569921/series/81967
* https://pixiv.cc/zerousagi/
* https://www.plurk.com/u/ddks2923
* https://www.plurk.com/m/u/leiy1225
* https://www.plurk.com/s/u/salmonroe13
* https://www.plurk.com/RSSSww/invite/4
* https://skeb.jp/@okku_oxn/works
* https://www.tumblr.com/blog/view/artofelaineho/187614935612
* https://www.tumblr.com/blog/view/artofelaineho
* https://www.tumblr.com/blog/artofelaineho
* https://www.tumblr.com/dashboard/blog/dankwartart
* https://rosarrie.tumblr.com/archive
* https://whereisnovember.tumblr.com/tagged/art
* https://twitpic.com/photos/Type10TK
* https://www.weibo.com/detail/4676597657371957
* https://www.weibo.com/u/5957640693/home?wvr=5
* https://www.weibo.com/lvxiuzi0/home

app/logical/source/url/plurk.rb

@@ -12,7 +12,7 @@ class Source::URL::Plurk < Source::URL
 
     # https://images.plurk.com/5wj6WD0r6y4rLN0DL3sqag.jpg
     # https://images.plurk.com/mx_5wj6WD0r6y4rLN0DL3sqag.jpg
-    in "plurk.com", /^(mx_)?(\w{22})\.(\w+)$/
+    in "plurk.com", /^(mx_)?(\w{22})\.(\w+)$/ if image_url?
       @image_id = $2
 
     # https://www.plurk.com/p/om6zv4
@@ -23,14 +23,27 @@ class Source::URL::Plurk < Source::URL
     in "plurk.com", "m", "p", work_id
       @work_id = work_id
 
-    # https://www.plurk.com/redeyehare
-    in "plurk.com", username
-      @username = username
-
     # https://www.plurk.com/m/redeyehare
     in "plurk.com", "m", username
       @username = username
 
+    # https://www.plurk.com/u/ddks2923
+    in "plurk.com", "u", username
+      @username = username
+
+    # https://www.plurk.com/m/u/leiy1225
+    in "plurk.com", "m", "u", username
+      @username = username
+
+    # https://www.plurk.com/s/u/salmonroe13
+    in "plurk.com", "s", "u", username
+      @username = username
+
+    # https://www.plurk.com/redeyehare
+    # https://www.plurk.com/RSSSww/invite/4
+    in "plurk.com", username, *rest
+      @username = username
+
     else
     end
   end