Create r1507044 backport branch.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x-r1507044@1507282 13f79535-47bb-0310-9956-ffa450edef68
On the 1.8.x-r1507044 branch, backport r1507044 from trunk, with the
following changes:

* subversion/bindings/swig/perl/libsvn_swig_perl/swigutil_pl.c: 
  Resolve whitespace conflicts.

git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x-r1507044@1507294 13f79535-47bb-0310-9956-ffa450edef68
Merge r1511057 from trunk:

 * r1511057
   Fix issue #4044: "svn log -v" fails with a 1.2.x server.
   Justification:
     Regression in 1.8.0 (ra_serf), basic functionality now fails with older
     servers which we still need to support.
   Votes:
     +1: lgo, gstein, philip


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x@1511571 13f79535-47bb-0310-9956-ffa450edef68
Merge the 1.8.x-r1507044 branch:

 * r1507044
   Fix a bug in the Perl bindings.
   Justification: The bug makes scripts using SVN::Client look like
     as if they didn't honor config settings from ~/.subversion/servers,
     though they should by default.
   Branch: ^/subversion/branches/1.8.x-r1507044
   Votes:
     +1: rschupp, danielsh


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/1.8.x@1511572 13f79535-47bb-0310-9956-ffa450edef68