Update Gutenberg and Aztec ref

Author: Gerardo

build.gradle

@@ -23,8 +23,8 @@ ext {
     automatticAboutVersion = '1.4.0'
     automatticRestVersion = '1.0.8'
     automatticTracksVersion = '3.5.0'
-    gutenbergMobileVersion = 'v1.115.0-alpha5'
-    wordPressAztecVersion = 'v2.0'
+    gutenbergMobileVersion = '6727-8a043fedb47b0c147bf129a3c54f0b2e208b5543'
+    wordPressAztecVersion = 'fix_gutenberg-backspace-styles-d845fbf4989acc4fbfddc877fd67c7671412fbe0'
     wordPressFluxCVersion = 'trunk-b9ecc708dde74d6cc95aeab42e56fb8067640039'
     wordPressLoginVersion = '1.14.1'
     wordPressPersistentEditTextVersion = '1.0.2'