vm: faster foo_to_bignum for common case of one bignum digit.
vm: fix tabs-to-spaces.
vm: formatting of sign_mask.
benchmark.tuple-arrays: cleanup, assert result.
sequences: make sum-lengths generic.
cursors: adding hash-set-cursor.
sorting.extras: add some docs.
system-info.macosx: adding OSX 10.10 code name "Yosemite"
system-info.macosx: simplify gestalt.
system-info.macosx: use int-arrays.
io.binary.fast: adding fast alien version of >le and >be.
alien.endian: use "c:" convention.
hints: specialize le> and be> for byte-array.
io.binary.fast: use alien technique for faster le> and be>.
io.binary.fast: remove duplication.
vocabs.hierarchy: simplify vocab-subdirs.
vocabs.hierarchy: a little bit cleaner.
sets.extras: adding mapped-set.
basis: use <vocab-link> in a couple places.
syntax: adding \b \v and \f escape codes.