first shot at parallel APL

git-svn-id: http://svn.savannah.gnu.org/svn/apl/trunk@480 bd74f7bd-1a55-4bac-9fab-68015b139e80
disabled containing_value assertion

git-svn-id: http://svn.savannah.gnu.org/svn/apl/trunk@481 bd74f7bd-1a55-4bac-9fab-68015b139e80
new release scheme

git-svn-id: http://svn.savannah.gnu.org/svn/apl/trunk@482 bd74f7bd-1a55-4bac-9fab-68015b139e80