updating db version and adding migration for question column

android/uhabits-core/src/main/java/org/isoron/uhabits/core/Config.java

@@ -22,5 +22,5 @@ package org.isoron.uhabits.core;
 public class Config
 {
     public static final String DATABASE_FILENAME = "uhabits.db";
-    public static int DATABASE_VERSION = 22;
+    public static int DATABASE_VERSION = 23;
 }

android/uhabits-core/src/main/resources/migrations/23.sql

@@ -0,0 +1,5 @@
+alter table Habits add column question text;
+
+update Habits set question = description
+
+update Habits set description = null