Fix missed name=>path parameter rename symbols

When the name parameter was renamed path (which became the namevar),
these explicit references to the parameter were missed. This commit
changes the :name references to :path. This is necessary to prevent
inconsistent behavior when using ensure=absent, or possibly when
specifying both name and path simultaneously.
Merge pull request #9 from reidmv/fix_missed_param_name_change

Fix missed name=>path parameter rename symbols