reset www folder on both upgrades and downgrades of application

src/android/src/com/nordnetab/chcp/main/HotCodePushPlugin.java

@@ -419,7 +419,7 @@ private boolean isWwwFolderExists() {
      * @return <code>true</code> if application was update; <code>false</code> - otherwise
      */
     private boolean isApplicationHasBeenUpdated() {
-        return pluginInternalPrefs.getAppBuildVersion() < VersionHelper.applicationVersionCode(cordova.getActivity());
+        return pluginInternalPrefs.getAppBuildVersion() != VersionHelper.applicationVersionCode(cordova.getActivity());
     }
 
     /**

src/ios/HCPPlugin.m

@@ -105,7 +105,7 @@ - (void)loadApplicationConfig {
  */
 - (BOOL)isWWwFolderNeedsToBeInstalled {
     NSFileManager *fileManager = [NSFileManager defaultManager];
-    BOOL isApplicationUpdated = [NSBundle applicationBuildVersion] > _pluginInternalPrefs.appBuildVersion;
+    BOOL isApplicationUpdated = [NSBundle applicationBuildVersion] != _pluginInternalPrefs.appBuildVersion;
     BOOL isWWwFolderExists = [fileManager fileExistsAtPath:_filesStructure.wwwFolder.path];
     BOOL isWWwFolderInstalled = _pluginInternalPrefs.isWwwFolderInstalled;