syslog: add new rsyslog provider using Rsyslog lens from Augeas 1.0.0

Fixes #31
syslog: mention both providers
Fix ruby-augeas 0.3.0 compatibility on Ruby 1.9

Now use ruby-augeas 0.3.0 for the majority of tests.

Fixes #34
Don't throw Augeas load error when target doesn't already exist

Fixes #36
Release 0.6.1
specs: add Ruby 2 to test matrix
sysctl: Add 'apply' parameter, use sysctl command
Add pg_hba type and provider
Merge remote-tracking branch 'refs/remotes/hercules-team/master'

Conflicts:
	Modulefile