reverted tk-desktop to v2.4.14

There is a regression introduced in tk-desktop v2.5.0 with corporate proxy that prevents clients to enter in projects via SG Desktop.

Author: mathurf

env/includes/common/engines.yml

@@ -75,7 +75,7 @@ common.engines.tk-vred.location:
 common.engines.tk-desktop.location:
   type: app_store
   name: tk-desktop
-  version: v2.5.0
+  version: v2.4.14
 
 # Desktop2
 common.engines.tk-desktop2.location: