`master` uses deprecated features of Subversion

[hartwork]

Deprecated symbols

• svn_fs_paths_changed2
• svn_fs_revision_proplist

Compiler output

svn.cpp:494:34: warning: ‘svn_error_t* svn_fs_paths_changed2(apr_hash_t**, svn_fs_root_t*, apr_pool_t*)’ is deprecated [-Wdeprecated-declarations]
svn.cpp:547:37: warning: ‘svn_error_t* svn_fs_revision_proplist(apr_hash_t**, svn_fs_t*, svn_revnum_t, apr_pool_t*)’ is deprecated [-Wdeprecated-declarations]

CC #166