Removing optimizations from sgml-reader that do not work for UTF-8
Adding test for lex-name change
Example for with-handlers
Update srfi/19 for latest leap seconds

Closes PR 13390
minor doc repair
Summarize Racket history for v5.3.2

Merge to v5.3.2
add `file-truncate'
mach-o: handle some new load commands
mach-o: fix problems related to code signing

Strip any code signing when generating an executable from
Racket or GRacket. Also, place the __LINKEDIT segment in
virtual memory after the __PLTSCHEME segment, so that
the in-memory layout order matches the file layout order,
which in turn makes the code-signing tool's update of the
__LINKEDIT segment's size not create a virtual-memory
overlap with __PLTSCHEME.
Updated TR history.

Please merge to 5.3.2.
Fix year day for srfi/19-produced date*s

srfi/19's `date-year-day` indexes from 1 and Racket
indexes from 0.
Add pointer to make-log-receiver from start-recording docs.
Fix filters on odd? and even?

Closes PR 13233
Fix TR optimizer tests for TR info logging.
Fix collatz typed benchmark for fix to odd? and even?.
make 2htdp/image images convertible to picts
New Racket version 5.3.2.2.
Synch German string constants with latest.
Fixed some limits and accuracy issues with flonum expansions
Fixed type error in "bernoulli.rkt"

If you merge e1b6e84089, please merge this as well (or math won't
compile)