Bump version to 2.4.0

// FREEBIE

AndroidManifest.xml

@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           xmlns:tools="http://schemas.android.com/tools"
           package="org.thoughtcrime.securesms"
-      android:versionCode="87"
-      android:versionName="2.3.3">
+      android:versionCode="88"
+      android:versionName="2.4.0">
 
     <permission android:name="org.thoughtcrime.securesms.ACCESS_SECRETS"
                 android:label="Access to TextSecure Secrets"
@@ -90,6 +90,10 @@
               android:windowSoftInputMode="stateUnchanged"              
               android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
 
+    <activity android:name=".ConfirmIdentityActivity"
+              android:theme="@style/TextSecure.Light.Dialog"
+              android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>
+
     <activity android:name=".MmsPreferencesActivity"
                android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize"/>