Pressing escape closes intellisense popup

Fixes #251

Author: nosami

XSVim/Properties/AssemblyInfo.fs

@@ -5,7 +5,7 @@ open System.Runtime.CompilerServices
 [<AutoOpen>]
 module AddinVersion =
     [<Literal>]
-    let version = "0.65.2"
+    let version = "0.65.3"
 
 [<assembly: AssemblyTitle("XSVim")>]
 // The assembly version has the format {Major}.{Minor}.{Build}.{VSMacVersion}

XSVim/XSVim.fs

@@ -1125,6 +1125,7 @@ module Vim =
                     | NormalMode ->
                         let state = switchToNormalMode editor vimState
                         if vimState.mode = InsertMode then
+                            MonoDevelop.Ide.CodeCompletion.CompletionWindowManager.HideWindow ()
                             processCommands config 1 state (runOnce (SetMark ".") Nothing) false
                         else
                             state