created new variables page, combined import/export field validation, moved js to helper file

moved all functions to respective files, all called from head.php

moving runRegression file back to orig file as was causing a double-run

just a lil clean up

undoing js and php helper files

javascript pulled into helper file
Merge pull request #1 from taoistmath/jsHelperFiles

created new variables page, combined import/export field validation, mov...