fixes stub absorb
reduces stub fails.
removes other test for stub
formatting
cleans up trap_rule test
uses kahansum in the addConcMaps.
uses kahansum in conc_to_comp_map
recodes linspace to better handle rounding errors
stronger condition on linspace test
adds float test, linspace. passes.
adds some ordering to the extract method
oops, was supposed to use 5 rather than 10.
secspermonth test