added juan as author

[jvazquez-r7]

After todb update with "juan vazquez" as author.

I'll merge it in a while if anyone rejects this :)

[wchen-r7]

I'll do something about this. I intend to update your name to "juan vazquez" for consistency. Using "juan" may map the e-mail to the wrong person.

[jvazquez-r7]

Modules with 'juan' as author updated to 'juan vazquez', see #670