more module test updates
Bytecode: add op_lastsib for 5.21.2

5.21.2 Bytecode with PERL_OP_PARENT broken for sort (18,19.25)
The comment insn in bytecode not yet parsable from .asm

Other than that, this seems to be the major version for next 6 months.
INSTALLDIRS=perl < 5.10 to update the core perl compilers there

fixes #358
also fixup security warning (problem with binary names, not just unicode)
t/test.pl: c 41/cc 27 5.6 regressions
ByteLoader.xs: no PerlIO_binmode with 5.6

Note that this ByteLoader is not yet used with 5.6
Makefile.PL: install cc_runtime.h properly

ExtUtils::Install cannot install single files, so we have to use cp
Needed for installed B::CC
Release 1.48 - TODO t/issue251.t (#290) and #143 for some versions