revert back to liblmdb.a approach for win64
revert back to liblmdb.a approach for win64

headuck/lmdbjni,placrosse/lmdbjni,headuck/lmdbjni,recoilme/lmdbjni,deephacks/lmdbjni,deephacks/lmdbjni,headuck/lmdbjni,recoilme/lmdbjni,deephacks/lmdbjni,placrosse/lmdbjni,recoilme/lmdbjni,placrosse/lmdbjni