Add correct documentation for pg_ident_rule type
doc: Fix anchor links in README TOC

Several of the anchor links in the README's table of contents were
broken because of missing underscores.
Fixes the accidental erasing of pg_ident.conf

Even with manage_pg_ident_conf to false, or undef (witch defaults to
false), a concat object would be created, erasing the pg_ident.conf file
Support changing PGDATA on RedHat
Don't test on 3.5.0.rc3 any more
Remove firewall management

The firewall management really belongs outside of the module that
manages postgresql, like in a profile.
Create acceptance test for pgdata
Remove bogus -D argument
Merge pull request #474 from hunner/untest_rc

Don't test on 3.5.0.rc3 any more
Merge pull request #473 from mhjacks/pgdata_patch

Support changing PGDATA on RedHat
Fix indentation.
Merge pull request #479 from apenney/fix-lint

Fix indentation.
Merge pull request #476 from hunner/remove_firewall

Remove firewall management
Merge pull request #464 from txaj/support_pg_ident

Fixes the accidental erasing of pg_ident.conf
Merge pull request #458 from stdietrich/pg_ident_doc_fix

Add correct documentation for pg_ident_rule type
Merge pull request #459 from holguinj/linkfix

doc: Fix anchor links in README TOC
Update spec_helper for more consistency
Merge pull request #480 from mhaskel/spec_updates

Update spec_helper for more consistency