add all PUG mailing lists to the subscribe form

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Please add all of the PUG mailing lists to this subscribe form.

pdxpug
lapug
sfpug
spug
atlpug
sydpug
seapug

thank you!
-selena

-- 
Selena Deckelmann
PDXPUG - Portland PostgreSQL Users Group
http://pugs.postgresql.org/pdx
http://www.chesnok.com/daily