classes.struct: factoring struct-size out.
tools.ps: implemented on macosx.
tools.ps: sort-by-pid and print headers.
Fix some copyrights, sorry "Your name".
random.c: adding summary.
random.rdrand: adding RDRAND random generator.
math.matrices: add tests for square-matrix?.
math.matrices.laplace: adding Laplace expansion.
parser: add invalid-word-name, use it to check for redefining quotes.
tools.ps.linux: fix USE: system.
tools.ps.linux: fix USE: tools.ps.
listener: choose dark foreground on light background.