(#31) Add total count of nodes remedied
(#31) Add total count of nodes remedied

This patch adds a sum total count and percentage of the nodes remedied
by the migration process.  This information does not exist without this
patch, the individual mitigation counts would need to be summed up.

Nigel asked for this addition.  The new output looks like:

    tatus as of: 2011-10-23 16:49:53

                                    Total Nodes:      4 *
                           Step 0 (Has not run):      0 (0.0%)
                            Step 2 (DNS Switch):      0 (0.0%)
                            Step 4 (SSL Switch):      4 (100.0%)

     * Total of the nodes active within the last 30 days

             Risk Mitigated (Issued a new Cert):      4 (100.0%)
        --------------------------------------------------------
                      Total of Nodes Remediated:      4 (100.0%)

Closes #31

puppetlabs/puppetlabs-cve20113872,puppetlabs/puppetlabs-cve20113872