Updating release notes for 1.4.1

ReleaseNotes/1.4.1.html

@@ -1,3 +1,11 @@
 Fixes/Features in 1.4.1:
 
-* 
+* Of course, if you haven't upgraded to 1.4.x yet, be sure to give it a try since 1.4.0+ versions support new windows and tabbed windows using native macOS tabbing support!
+
+* No longer automatically sets Accept-Encoding and Accept-Language header fields on outgoing requests (Issue #128). 
+* Fixes pre-emptive auth broken in 1.4.0 (Issue #129)
+* Remembers the preferred width of the saved requests sidebar
+* Adds a submit request menu item mapped to Control-S (Issue #116)
+* Remember last Content-Type header selection from Content-Type menu (Issue #81)
+* Increases number of visible HTTP Methods in dropdown (Issue #108)
+* Fixes minor bug that causes import and export requests functionality to break after Reload Requests Drawer menu item is invoked.