add last_run to the list of dynamic facts that are filtered out

The fact `last_run` comes from the `puppi` module which is fairly
common.  This patch also adds some simple tests for dynamic fact
filtering.  In the future, the list of fact filters is probably going to
need to be configurable via the API instead of hard coded into an ERB
template.
(#86) grant the rabbitmq admin user configure permssions

Configure permissions are required for the user to be able to create exchanges.
maint - add rabbitmq to rspec-system testing

This patch adds hiera configuration to configure 'rabbitmq.foo.vm' with
rabbitmq, so we have end-to-end testing there too.

To use:

    RSPEC_SET=centos-64-x64-rabbitmq rake spec:system
Merge pull request #89 from richardc/bug/master/86

(#86) grant the rabbitmq admin user configure permssions
Merge pull request #90 from richardc/rabbitmq-rspec

maint - add rabbitmq to rspec-system testing
Merge pull request #88 from jhoblitt/filter_last_run_fact

add last_run to the list of dynamic facts that are filtered out
Remove metadata.json, it's causing problems for users.
Merge pull request #92 from apenney/metadata-removal

Remove metadata.json, it's causing problems for users.
Prepare a 1.1.1 release.
Merge pull request #93 from apenney/111-release

Prepare a 1.1.1 release.
added option for disabling base64
added rspec test for new param in mcollective class
Merge branch 'base64_option' of github.com:ajcrowe/puppetlabs-mcollective into base64_option