don't fail on empty lines

JournalFile.cs

@@ -112,6 +112,10 @@ namespace EDJournal {
 
             entries.Clear();
             foreach(var line in lines) {
+                // Skip empty lines
+                if (line.Trim().Length == 0) {
+                    continue;
+                }
                 Entry entry = Entry.Parse(line);
                 entries.Add(entry);
             }