more spec fixes for 1.9.2
more spec fixes for 1.9.2

* String#map was removed and was being used previously (unintentionally)
* require no longer uses Dir.pwd as a LOAD_PATH. Apparently you must
  qualify relative requires with a ./

jarmo/spork,sporkrb/spork,paypronl/spork,sporkrb/spork,selenetelenav/spork,paypronl/spork,selenetelenav/spork,Eric-Guo/spork,Eric-Guo/spork,jarmo/spork