release v0.20.23

NEWS

-ver 0.20.23 (not yet released)
+ver 0.20.23 (2018/10/29)
 * protocol
   - emit "player" idle event when restarting the current song
 * fix broken float to s32 conversion

android/AndroidManifest.xml

@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="org.musicpd"
           android:installLocation="auto"
-          android:versionCode="21"
-          android:versionName="0.20.22">
+          android:versionCode="22"
+          android:versionName="0.20.23">
 
   <uses-sdk android:minSdkVersion="21" android:targetSdkVersion="26"/>