Add notes for 0.4.1

Author: tomv564

messages.json

@@ -4,5 +4,6 @@
     "0.2.1": "messages/0.2.1.txt",
     "0.2.2": "messages/0.2.2.txt",
     "0.3.0": "messages/0.3.0.txt",
-    "0.4.0": "messages/0.4.0.txt"
+    "0.4.0": "messages/0.4.0.txt",
+    "0.4.1": "messages/0.4.1.txt"
 }

messages/0.4.1.txt

@@ -0,0 +1,8 @@
+=> 0.4.1
+
+Major bug fixes:
+* didClose not sent (thanks @rwols)
+* completions stuck when empty list received (thanks @golddranks)
+* ImportError: mdpopups dependencies not installed correctly (thanks @jrappen)
+
+See https://github.com/tomv564/LSP/releases/tag/0.4.1 for full update details.