EPSA Crop doesn't work after node form validation fails

When node form validation fails (e.g. you're leave required field empty) no scripts nor styles are included. This is because of http://drupal.org/node/671574 - hook_form_alter() isn't called in such situations. The solution is to add 'node/*/edit' (and any other where the problem exists) to paths or call _epsacrop_include_html() as #after_build (this is a proper way). Patch included.