Rename GitHelp.hash to GitHelp.git_hash
Fix up Network dns_search resolve.conf support

Prior problems:

* Was using a bogus resolver.conf name instead of resolv.conf
* Didn't have persistent change support for RHEL
* Would replace /etc/resolv.conf symlink on Ubuntu, causing problems

Also renamed prop to dns_search (allowing list) and dns_domain alias
Merge branch 'network-dns-search' into dev
Add PostgreSQL.local_access, fix pg_hba.conf
Merge branch 'postgres-ii' into dev
Bump to version 2.1.2
Merge branch 'network-dns-search' into 2.1.x
History for merge, 2.1.2 release
Merge branch 'master' into dev

Conflicts:
	Gemfile.lock
	History.rdoc
	lib/syncwrap/base.rb