ChangeLog: 2 updates to Tests
[test] skip IPv6 socket tests without IPv6, fixes #1068

There are systems without INET6 family support at all. It is a kernel option afterall.
Thanks to basiliscos for reporting
ChangeLog: add GH #1068
Merge branch 'socketipv6-gh1068'

Fix confirmed by user

./parrot t/pmc/socket.t
1..23
ok 1 - Instantiated a Socket PMC
ok 2 - PMC has correct type
ok 3 - can get_fd a Socket
ok 4 - Socket read returns 0 when not connected
ok 5 - Cloned a Socket PMC
ok 6 - Cloned PMC has correct type TT#1820
ok 7 - get_bool on closed Socket
ok 8 - Closed a Socket
ok 9 - A closed Socket returns False
ok 10 - Socket is_closed returned 1 to new socket
ok 11 - Created a TCP Socket
ok 12 - Created a UDP Socket
ok 13 - Socket getprotobyname(icmp) returned 1
ok 14 - Socket getprotobyname(tcp) returned 6
ok 15 - empty protocol name does not coredump
ok 16 - non-existent protocol name does not coredump
ok 17 - Server process started
ok 18 - socket
ok 19 - send
ok 20 - recv
ok 21 - send() big
ok 22 - read(1024) chunked
ok 23 - Exit status of server process
ChangeLog: minor addition benchmarks/run.sh
[test] add t/steps/auto/expect-01.t configure step test
Release 6.3.0 (supported release)

No core or build changes since 6.2.0, just tests and benchmarks
[examples] enable regexdna.pir argv to allow gdb debugging

we now accept an optional filename arg to regexdna.pir
to study GC write barrier crashes with
gdb --args ./parrot examples/shootout/regexdna.pir examples/shootout/regexdna.pir_input
prepare ChangeLog for 6.4.0
[test] t/dynoplibs/debug.t - Skip debug_break on darwin also. See GH#1071
Prepare for the 6.4.0 release.
[config] fix failing ICU headers probes on multi-arch

We must not die when perl does not find the icuheaders.
cc needs to find it, and it does it in the probe if they are
in the proper cc searchdir.

icu-config does not store the full headerpath, only pkg-config.
Fixes [GH #1014] on debian/ubuntu
Merge branch 'rurban/icuheaders-gh1014'

Confirmed ok by pmichaud on Kubuntu 14.04, and also tested ok on solaris
[opengl] Fix BSD problem which does not define __APPLE__

Fix opengl on bsd which does not have __APPLE__ defined as 0.
freeglut from 2.0 to at least 2.8 relies on that define.
Fixes [GH #1070].
[pmc] minor optimization in Integer_multi_i_add_Complex

Deteced by Chirag++ and pmc2c.
Do not compute SELF.get_integer() twice and remove UNSUED(a).
Do the same for the default case below.
[pmc] oops, undo the previous optimization

it broke the integer test 39 add complex number.
Just remove the first duplicate SELF.get_integer call, and UNUSED(a)
[imcc] regenerated imclexer.c with latest flex

use yy_size_t len instead of int
[native_pbc] update fingerprints to unTODO tests

perl tools/dev/pbc_header.pl --update-fingerprint t/native_pbc/*.pbc
as per release_manager_guide
--gc=inf: fix t/op/gc.t and mention gms in Configure --help

gc_type = INF should skip the first gc tests
add local .perldb helper to .gitignore/MANIFEST.SKIP

so that git clean -dxf will not wipe it.