"algorithm" minor correctiosn
"using" typo corrections mostly
plotting: only minor stuff, but int->'short' for astype (50% less
memory...)
plotting: some unit fixes, mostly style again
updated 'advanced' example and corrected some bugs
attempt to explain "independent" more exactly
tiny style change
corrected bug in "advanced" plots
fixes per comments...
Merge pull request #82 from keflavich/docfixes

Documentation fixes / review