huffman [Wed, 06 Oct 2010 10:49:27 -0700] rev 39974
major reorganization/simplification of HOLCF type classes:
removed profinite/bifinite classes and approx function;
universal domain uses approx_chain locale instead of bifinite class;
ideal_completion locale does not use 'take' functions, requires countable basis instead;
replaced type 'udom alg_defl' with type 'sfp';
replaced class 'rep' with class 'sfp';
renamed REP('a) to SFP('a);