[PyGreSQL] Patch to add read support for integer arrays

[Christoph Zwerschke]

As long as you only handle arrays of ints, things are pretty safe. But 
Postgres arrays can also contain strings (and other types) which make 
this dangerous. Also, you would need to insert the correct quotes which 
is at least as more complicated as parsing the array by hand. So eval() 
would be of no use here anyway.

-- Christoph