Bump to 3.6.4 Beta 2

NEWS

+Changes between 3.6.4 Beta 1 and 3.6.4 Beta 2:
+------------------
+ * Fix a permission issue
+ * Add a confirmation when overwriting playlists
+
 Changes between 3.6.3 and 3.6.4 Beta 1:
 ------------------
  * Improve the playback speed feature

build.gradle

@@ -39,8 +39,8 @@ allprojects {
 
 ext {
     appId = "org.videolan.vlc"
-    versionCode = 3060310
-    versionName = project.hasProperty('forceVlc4') && project.getProperty('forceVlc4') ? '4.0.0-preview - ' + versionCode : '3.6.4 Beta 1'
+    versionCode = 3060320
+    versionName = project.hasProperty('forceVlc4') && project.getProperty('forceVlc4') ? '4.0.0-preview - ' + versionCode : '3.6.4 Beta 2'
     vlcMajorVersion = project.hasProperty('forceVlc4') && project.getProperty('forceVlc4') ? 4 : 3
     remoteAccessVersion = '0.3.0'
     libvlcVersion = vlcMajorVersion == 3 ? '3.6.0' :'4.0.0-eap18'