Examples that highlight the behavior of some with non-predicates.

Some returns the first truthy value returned by the predicate.
moved the isWhitespace motivational out of the exercise block
forbid the use of remove in my-filter
firbid the use of sort in seq-merge
HAS-ALL-THE-AWARDS doesn't assume a fixed awards set
Merge branch 'master' of github.com:iloveponies/120-hour-epic-sax-marathon
Merge branch 'master' into gh-pages