replaygain: fix up doc links to defunct replaygain.org website

Fixes #624
27 jobs for docs-fix-up-replaygain-links in 113 minutes and 21 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Preparation
passed #528109
gst indent

00:00:42

passed #528108
manifest

00:00:44

 
  Build
passed #528304
build cerbero android universal

00:12:45

passed #528305
build cerbero cross win32

00:09:18

passed #528120
build cerbero cross win64

00:58:29

passed #528117
build cerbero fedora x86_64

00:48:23

manual #528122
gst-ios-12.2 allowed to fail manual
build cerbero ios universal
passed #528121
gst-macos-10.14
build cerbero macos x86_64

00:54:23

passed #528110
build fedora x86_64

00:09:16

passed #528306
docker windows 1607
build msys2

00:09:04

passed #528111
build nodebug fedora x86_64

00:09:12

passed #528112
build static fedora x86_64

00:13:33

passed #528113
build static nodebug fedora x86_64

00:15:33

passed #528114
docker windows 1607
build vs2017 amd64

00:11:02

passed #528115
docker windows 1607
build vs2017 x86

00:09:36

failed #528118
build cerbero android universal

01:00:00

failed #528119
build cerbero cross win32

01:00:00

failed #528116
docker windows 1607
build msys2

00:00:07

 
  Test
passed #528123
check fedora

00:06:15

passed #528124
integration testsuites fedora

00:23:35

passed #528126
valgrind bad

00:12:06

passed #528127
valgrind ges

00:08:40

passed #528485
valgrind good

00:09:24

failed #528424
valgrind good

00:17:29

failed #528125
valgrind good

00:24:48

 
  Integrate
passed #528128
android universal examples

00:08:04

passed #528129
documentation

00:04:41