Add a `doctype' convenience.
Fix the obligatory Stupid Mistake.
Fix reporting of struct constructors in TR.
Change the signature for group-by.

Based on discussion with Eli.
Fix running individual optimizer tests.
Add Asumu and Eric to the TR credits.
racket/draw: fix problem with caching of unscaled, single characters

Ccahing retains a "run" layout that is destroyed along with its
iterator.
JIT: improve configuration dependency
fix JIT bug related to unboxed arguments in self tail calls
minor fix to Redex docs
fix treatment of an old-style ".plt" file as a package
raco setup: fix command-line argument handling
improve line number redrawing

it now checks to avoid drawing the line numbers when
the invalid region is not lined up in the X direction
add place-images and place-images/align
more helpful message for contract failure
Fixing PR14007
Track checksum errors
Fix checksum goof
Conservative extension to match so that app patterns may produce and consume multiple values.
Add 'distributed-places' to 'main-distribution'.