always show the full path for the top level node in the dump

[lsmith77]

maybe the better more sensible approach to #147

[dbu]

is the level relative to the root we asked for? if that is the case then i agree with this and like the idea.

[lsmith77]

Yeah the level always defaults to 0 for the top level node we show in the result

lsmith@pooteeweet cmf-sandbox (master)$ app/console doctrine:phpcr:node:dump 1d81c8b7-386e-4a21-a568-e39b41bbb7ad
/cms/content/home:
  phpcr_locale:en:

lsmith@pooteeweet cmf-sandbox (master)$ app/console doctrine:phpcr:node:dump /cms/routes
/cms/routes:
  en:
    company:

[dbu]

Then lets merge this, it makes sense