Update md5 checksum for cacert.pem

The certificate was updated as of 2014/04/22.
Add sqitch and perl_pg_driver
Merge pull request #182 from opscode/jw/sqitch

Add sqitch and perl_pg_driver
Merge pull request #174 from gaffneyc/fix-cacerts-md5

Update md5 checksum for cacert.pem
Fix chefdk windows build issues (WIP)

Fixes windows build issues for ChefDK.