Update changelog

CHANGELOG.md

 Change Log
 ==========
+Version 2.6.3
+----------------------------
+
+- Fix routing of URLs when coming from feed activity
+
 Version 2.6.2
 ----------------------------

build.gradle

 apply plugin: 'com.github.ben-manes.versions'
 buildscript {
-    ext.kotlinVersion = '1.2.60'
+    ext.kotlinVersion = '1.2.61'
     repositories {
         google()
         jcenter()