Gut Perl_save_re_context

What it does is not longer necessary.  See ticket #122747 and
commits 2c1f00b90 and 7d75537e.

The only CPAN module using this function, XML::Fast, passes its tests
with this change.
Don’t call save_re_context

It is an empty function.
Remove obsolete comment from utf8.c

The call to save_re_context was removed by the previous commit.  The
commit before that stopped save_re_context from doing anything.

Commit db2c6cb33 stopped the errsv_save line from triggering
get-magic.

So this comment, added in dc0c6abb4, no longer applies.
utf8.c: Move an #ifndef for clarity

The comment really belongs inside it, as it refers to those two
lines of code.
pp_ctl.c: Remove PL_curcop assignment

This was added years ago in commit 7fb6a879.  Now that save_re_context
does nothing (and die_unwind no longer even calls it), we don’t need to
assign to PL_curcop.  In the case where it matters, that is, the implicit
eval scope that require provides, the values of PL_curcop and oldcop
should always be the same.
Mathomise save_re_context

at Jarkko’s suggestion.
pp_ctl.c: Remove junk from #endif

What was I thinking?
Deparse our(LIST) correctly

It was coming out like this:

our($main::foo, $main::bar, $main::baz);
Deparse typed vars
Deparse.pm:pp_list: Don’t call $lop->name repeatedly

because it’s inefficient.
Increase $B::Deparse::VERSION to 1.28
concise-xs.t is overly chummy with B::Deparse
Need to have frexpl for long doubles.
HAS_C99 comment tweak.
Use HAS_ISFINITE for Perl_isfinitel.
Add perldelta entry for 8a384d3a99 (ParseXS and locales).
Semicolon before ellipsis inside block disambiguates.

Correct documentation which indicated that, inside a block, a semicolon after
an ellipsis statement would disambiguate between a block and a hash reference
constructor.  The semicolon must precede the ellipsis to perform this
disambiguation.

Add tests to demonstrate that whitespace around the ellipsis statement does
not impeded the disambiguation.  Add perldelta entry.

For: RT #122661
Mention inf/nan and POSIX C99 math improvements.
Make the link not a link.
Update IO-Socket-IP to CPAN version 0.32

  [DELTA]

0.32    2014/09/12 10:11:27
        [CHANGES]
         * Implementation of Timeout for ->connect (RT92075)