Fix unfinished thought in xml overview page.  Suggested by Bo Bayles on docs@.
Issue #20460: Render 'bytes' as a class, not a function.
Patch by OSAMU NAKAMURA.
#20288: fix handling of invalid numeric charrefs in HTMLParser.
Update the python.gif icon for the Idle classbrowser and pathbowser
from the old green snake to the new new blue and yellow snakes.
use with statement to ensure zipfile is always closed (closes #20102)
Issue #19320: Fixed split/splitlist tests in test_tcl for Tcl 8.5.0-8.5.5.
Issue #20423: fix documentation of io.StringIO's newline parameter
Issue #19990: Install test/imghdrdata.
Issue #20435: Fix _pyio.StringIO.getvalue() to take into account newline translation settings.
Added cookbook entry on logging filter configuration using dictConfig().
Use different word
Issue #20368: Add tests for Tkinter methods exprstring(), exprdouble(),
exprlong() and exprboolean().
Issue #20368: The null character now correctly passed from Tcl to Python.
Improved error handling in variables-related commands.
Issue #19761: Fixed Tkinter tests on OS X.
Issue #20426: When passing the re.DEBUG flag, re.compile() displays the debug output every time it is called, regardless of the compilation cache.
Skip expr* tests for large integers for Tcl <8.5.
The '**' operator is available only since 8.5 and in any case such large
integers are not supported on Tcl <8.5.
Issue #20474: Fix "unexpected success" test_socket failures on OS X 10.7+.
restore namespacing of pyexpat symbols (closes #19186)
Issue #20509: Added cross-reference in documentation.
Issue #20515: Fix NULL pointer dereference introduced by issue #20368
CID 1167595