added pg adapter

Signed-off-by: Kyna Gem Sy <kyna_gem@yahoo.com>
use Ruby 1.9.3
use pg
use pg
new heroku
Merge branch 'enhanced_proyektopo' of https://github.com/kynagemsy/proyektopo into enhanced_proyektopo
fix wrong schema
trying to fix
trying to fix
trying to fix
fixed na
set default to false