[COOK-3597] Implement `initdb_locale` attribute for RHEL

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
[COOK-3685] Upgrade Repo Attributes for Postgresql 9.3

- Adds pgdg yum repo attributes for rhel based systems for 9.3
- Enhances pgdg yum repo attributes for newer 9.2 packages

Further information can be found here:  http://yum.postgresql.org/repopackages.php#pg93

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Version bump to v3.1.0
Version bump to v3.1.1
apt 1.9.0 is required for glob attribute
[COOK-3717] Pgdg repositories improvements

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-3756] Change postgresql.conf mode from 0600 to 0644

Signed-off-by: Sean OMeara <someara@opscode.com>
Version bump to v3.2.0
Version bump to v3.2.1
[COOK-3851] Allow config file change notification    type to be specified by attribute, defaulting to :restart

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-3611]Remove server bits and just install libpq-dev

Signed-off-by: Sean OMeara <someara@opscode.com>
[COOK-2954] Support Installing non-standard versions on CentOS 6

Signed-off-by: Sean OMeara <someara@opscode.com>
Version bump to v3.3.0
Version bump to v3.3.1
Version bump to v3.3.2
Version bump to v3.3.4
Update README.md

I needed to specify this setting as array in order to work ...
fix centos fails libpq-dev package
[COOK-4095] remove explicit ref to libpq-dev package

There is no libpq-dev package on RedHat 6 (maybe other versions too).

There is already code which installs client packages - this is supposed
to deal with installing postgresql devel packages.
[COOK-4147] add oracle rpms in default['postgresql']['pgdg']['repo_rpm_url']