Add support for 8.5.3

- Support for new channel type (news) is added
- New color: primary_660, not used anywhere
- `switch_thumb_normal_material_light` is no longer top bar color, this will affect customtheme's top bar, I'll fix it when I find time.
- crashlytics was updated (ahhhhhhhhhhhh)
- fabric was updated (ahhhhhhhhhh)
- drainEventsQueue from analytics was rewritten (ahhhhhhhhhhhhhhhhh)

patches/customversion/853.patch

@@ -0,0 +1,21 @@
+diff -crB -x dist -x build com.discord-853-base/smali/com/discord/widgets/settings/WidgetSettings.smali com.discord-853/smali/com/discord/widgets/settings/WidgetSettings.smali
+*** com.discord-853-base/smali/com/discord/widgets/settings/WidgetSettings.smali	2019-02-23 23:35:53.332666606 +0300
+--- com.discord-853/smali/com/discord/widgets/settings/WidgetSettings.smali	2019-02-23 23:39:08.373796999 +0300
+***************
+*** 1359,1365 ****
+  
+      invoke-virtual {v2, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
+  
+!     const-string v1, " - 8.5.3 (853)"
+  
+      invoke-virtual {v2, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
+  
+--- 1359,1365 ----
+  
+      invoke-virtual {v2, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
+  
+!     const-string v1, " - 8.5.3 (853), with Cutthecord patches"
+  
+      invoke-virtual {v2, v1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;
+  
+

patches/customversion/README.md

@@ -19,4 +19,5 @@ This patch replaces version string and adds mention of cutthecord in the user se
 - 8.4.8
 - 8.5.0
 - 8.5.1
+- 8.5.3