[geary] Allow secure Gravatar requests by default.

[Michael Gratton <mjog src gnome org>]

commit f9cd259f555c635557fd47cdbc59aa6c6c707d9f
Author: Michael James Gratton <mike vee net>
Date:   Wed May 18 19:46:23 2016 +1000

    Allow secure Gravatar requests by default.
    
    Bug 766595
    
    * src/client/conversation-viewer/conversation-web-view.vala
      (ConversationWebView::always_loaded_prefixes): Update to use new secure
      Gravatar URL.

 .../conversation-viewer/conversation-web-view.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/client/conversation-viewer/conversation-web-view.vala 
b/src/client/conversation-viewer/conversation-web-view.vala
index 9b5082b..50ed18c 100644
--- a/src/client/conversation-viewer/conversation-web-view.vala
+++ b/src/client/conversation-viewer/conversation-web-view.vala
@@ -6,7 +6,7 @@
 
 public class ConversationWebView : StylishWebView {
     private const string[] always_loaded_prefixes = {
-        "http://www.gravatar.com/avatar/";,
+        "https://secure.gravatar.com/avatar/";,
         "data:"
     };