[PATCH] Support Berkeley DB 4.7

[[[
Support Berkeley DB 4.7.

* subversion/libsvn_fs_base/fs.c
  (check_env_flags, get_db_pagesize, base_hotcopy):
   Use '#if DB_VERSION_MINOR >= 2' instead of '#ifdef DB_LOG_AUTOREMOVE'
   to check for Berkeley DB >= 4.2.
  (check_env_flags):
   Call DB_ENV->log_get_config() instead of DB_ENV->get_flags() for
   Berkeley DB >= 4.7.
  (base_hotcopy):
   Call check_env_flags() with DB_LOG_AUTO_REMOVE instead of DB_LOG_AUTOREMOVE
   for Berkeley DB >= 4.7.

* build/generator/gen_win.py
  (GeneratorBase._find_bdb): Allow Berkeley DB 4.7.
]]]

-- 
Arfrever Frehtes Taifersar Arahesis