Restore perlrepository.pod in stub form

Give Perl doc sites a sane ‘latest’ version to display, directing readers
to current information, rather than showing the Perl 5.12 version in
perpetuity.

And help anybody typing man perlrepository find where the docs have moved
to.

Suggested by Father Chrysostomos in:
http://www.nntp.perl.org/group/perl.perl5.porters/2013/09/msg207079.html

MANIFEST

@@ -4703,6 +4703,7 @@ pod/perlref.pod			Perl references, the rest of the story
 pod/perlreftut.pod		Perl references short introduction
 pod/perlreguts.pod		Perl regular expression engine internals
 pod/perlre.pod			Perl regular expressions, the rest of the story
+pod/perlrepository.pod		
 pod/perlrequick.pod		Perl regular expressions quick start
 pod/perlreref.pod		Perl regular expressions quick reference
 pod/perlretut.pod		Perl regular expressions tutorial

pod/perl.pod

@@ -271,6 +271,7 @@ aux a2p c2ph h2ph h2xs perlbug pl2pm pod2html pod2man s2p splain xsubpp
     perltodo
     perltooc		
     perltoot		
+    perlrepository
 
 =for buildtoc __END__
 

pod/perlrepository.pod

@@ -0,0 +1,18 @@
+=encoding utf8
+
+=head1 NAME
+
+perlrepository - Links to current information on the Perl source repository
+
+=head1 DESCRIPTION
+
+Perl's source code is stored in a Git repository.
+
+See L<perlhack> for an explanation of Perl development, including the
+L<Super Quick Patch Guide|perlhack/SUPER QUICK PATCH GUIDE> for making and
+submitting a small patch.
+
+See L<perlgit> for detailed information about Perl's Git repository.
+
+(The above documents supersede the information that was formerly here in
+perlrepository.)

win32/pod.mak

@@ -118,6 +118,7 @@ POD = perl.pod	\
 	perlref.pod	\
 	perlreftut.pod	\
 	perlreguts.pod	\
+	perlrepository.pod	\
 	perlrequick.pod	\
 	perlreref.pod	\
 	perlretut.pod	\
@@ -249,6 +250,7 @@ MAN = perl.man	\
 	perlref.man	\
 	perlreftut.man	\
 	perlreguts.man	\
+	perlrepository.man	\
 	perlrequick.man	\
 	perlreref.man	\
 	perlretut.man	\
@@ -380,6 +382,7 @@ HTML = perl.html	\
 	perlref.html	\
 	perlreftut.html	\
 	perlreguts.html	\
+	perlrepository.html	\
 	perlrequick.html	\
 	perlreref.html	\
 	perlretut.html	\
@@ -511,6 +514,7 @@ TEX = perl.tex	\
 	perlref.tex	\
 	perlreftut.tex	\
 	perlreguts.tex	\
+	perlrepository.tex	\
 	perlrequick.tex	\
 	perlreref.tex	\
 	perlretut.tex	\