* post_form method is extended to accept params as     array of string,     array of hash,     array of array,   or     string   in addition to hash. * params option can be ommited if not needed (defaults to nil)
* post_form method is extended to accept params as
    array of string,
    array of hash,
    array of array,
  or
    string
  in addition to hash.
* params option can be ommited if not needed (defaults to nil)

csw/bioruby-phyloxml