Fixed a couple of issues in new DefaultLocalizer implementation
Fixed a couple of issues in new DefaultLocalizer implementation

msft-shahins/BotBuilder,stevengum97/BotBuilder,stevengum97/BotBuilder,msft-shahins/BotBuilder,yakumo/BotBuilder,yakumo/BotBuilder,msft-shahins/BotBuilder,msft-shahins/BotBuilder,xiangyan99/BotBuilder,xiangyan99/BotBuilder,xiangyan99/BotBuilder,yakumo/BotBuilder,stevengum97/BotBuilder,stevengum97/BotBuilder,xiangyan99/BotBuilder,yakumo/BotBuilder