message: Update to config variable for importWallet
diff: @@ -601,8 +601,7 @@ completion:(void (^)(NSError *error))completion
  completion:(void (^)(NSError *error, NSInteger importHandle))completion {
  vcx_error_t ret;
  vcx_command_handle_t handle = [[VcxCallbacks sharedInstance] createCommandHandleFor:completion];
  - const char * config=[config cString];
  - ret = vcx_wallet_import(handle, config, VcxWrapperCommonCallback);
  + ret = vcx_wallet_import(handle, [config cString], VcxWrapperCommonCallback);
  if( ret != 0 )
  {
  