Revision 1640915

Add FS config option to control log-addressing feature for created
repository.

* subversion/include/svn_fs.h
  (SVN_FS_CONFIG_FSFS_LOG_ADDRESSING): New.
* subversion/libsvn_fs_fs/fs_fs.c
  (svn_fs_fs__create): Handle SVN_FS_CONFIG_FSFS_LOG_ADDRESSING option.

* subversion/tests/libsvn_fs/fs-test.c
  (test_fsfs_config_opts): New. Test creating FSFS repositories with default
   and custom settings.
  (test_funcs): Add test_fsfs_config_opts test to test list.