Don't require pg_array extension when loading pg_row
Don't require pg_array extension when loading pg_row

I originally planned to make it automatic so that composite
types in bound variables would work.  However, since the
Database needs to be extended with a module, just loading
the pg_row extension will not ensure that.  The user needs
to manually load the pg_array extension first.

knut2/sequel,davidbegin/sequel,yazshel/sequel,mpalmer/sequel,offshore-safety/sequel,yazshel/sequel,davidbegin/sequel,offshore-safety/sequel,nicohvi/sequel,bigfix/sequel,uhoh-itsmaciek/sequel,gferguson-gd/sequel,reubano/sequel,knut2/sequel,beni55/sequel,t-morgan/sequel,nju520/sequel,seeARMS/sequel,nicohvi/sequel,reubano/sequel,t-morgan/sequel,dennis-d/custom_sequel,pfarrell/sequel,Marketcircle/sequel,mpalmer/sequel,offshore-safety/sequel,beni55/sequel,seeARMS/sequel,freshpay/sequel,nju520/sequel,chef/sequel,dennis-d/custom_sequel,freshpay/sequel,pfarrell/sequel,uhoh-itsmaciek/sequel,gferguson-gd/sequel