7.ss, scheme.1.in, comments of many files original commit: 06f858f9a505b9d6fb6ca1ac97234927cb2dc641
and release notes. updated the release notes to account for a couple of other log entries. release_notes.stex, intro.stex, io.stex original commit: 7d1bbdaaccc6640e1529fdbd8b40a8ff7012bee4
original commit: 47a210c15c63ba9677852269447bd2f2598b51fe