Move account module to jbouse/puppet-account fork to fix problem

Pull request submitted upstream to torrancew/puppet-account for inclusion.
	https://github.com/torrancew/puppet-account/pull/7
Move nrpe module to jbouse/puppet-nagios-nrpe fork to fix problem

Pull request submitted upstream to proletaryo/puppet-nagios-nrpe for inclusion.
	https://github.com/proletaryo/puppet-nagios-nrpe/pull/7
Move openvpn module to jbouse/puppet-openvpn fork to fix problem

Pull request submitted upstream to xaque208/puppet-openvpn for inclusion.
	https://github.com/xaque208/puppet-openvpn/pull/4
Update ssh module revision
Add akumria/puppet-nullmailer module

Actually a fork of this module to address issues and submit a PR
for inclusion.
Patch against proletaryo/puppet-nagios-nrpe was accepted

Since my patch to correct the template issue was accepted by upstream
I've reverted back to the main repository instead of my forked one.
Add razorsedge/puppet-snmp submodule
Add attachmentgenie/puppet-module-locales module
Move ssh module to jbouse/puppet-ssh fork to fix problem

Pull request submitted upstream to spiette/puppet-ssh for inclusion.
Will revert back to upstream repo when fix has been included.
Modify account lookups in base

Use hiera_hash() for cascaded lookups
Add addition of default value hash lookup