Wolfram plugin doesn't handle questions beginning with "how"

[mtrythall]

Originally filed by Michael Jung.

[0__0]: how old is President Obama?

Does not return an answer from BotBot. But this question is answered correctly on the Wolfram Alpha site, so BotBot should be able to handle it as well.

After discussing with @bartTC, it looks like BotBot's Wolfram plugin does not handle questions beginning with "how." He suggests adding this:

((W|w)(hat|here|ho|hy|hen)|(H|h)ow)

to line 34 of wolfram.py.