Polishing and Bugfixes (#613)

* Added a new field to Library for showing Last Scan time for a library.

Manage library page now shows last scan for each library. Tweaked the websocket code to make scan progress a bit more reliable.

* Updated docnet to provide ARM support from our recent PR. Pi users can now have a version for PDF support out of the box.

* Parser is now culture invariant to hopefully fix an issue on Italian systems not detecting . correctly

* Added the ability for the collection detail page to update when a new series is added.

* Fixed an issue where multiple chapters stacked in a volume and reading in incognito, wouldn't sort the chapters and would open the wrong one.

* Code smell

API/Entities/Library.cs

@@ -13,9 +13,13 @@ namespace API.Entities
         public LibraryType Type { get; set; }
         public DateTime Created { get; set; }
         public DateTime LastModified { get; set; }
+        /// <summary>
+        /// Last time Library was scanned
+        /// </summary>
+        public DateTime LastScanned { get; set; }
         public ICollection<FolderPath> Folders { get; set; }
         public ICollection<AppUser> AppUsers { get; set; }
         public ICollection<Series> Series { get; set; }
-        
+
     }
-}
+}