add 'ignore','encoding','template' options

additional options support . 'template', 'encoding', 'ignore'

samples:

         phpdocumentor: {
             options : {
                 command : 'run',
                 encoding : 'euc-jp',
                 template : 'responsive-twig',
                 ignore   : ['htdocs/dir1',
                             'htdocs/dir2',
                             'tmp/dir3'],
             },