Aimlparser does not pass the value of BOT_NAME

In aimlparser.py, while parser process the tag, it only cascade the string "BOT_NAME" to self._current ... So, the aiml agent will not respond the user for the inputs embedded agent's name. for example, assume the agent is named as Chancy, users' utterance is "Chancy你好" and one pattern is 你好, the agent will not respond the user because the aimlparser only replace the bot tag with BOT_NAME instead of bot name assignment like in the kernel.py