Merge remote-tracking branch 'origin/mdb.RE/0.9'

diff --combined libraries/liblmdb/lmdb.h
index 3afcdd34b0d00abfd71f5750430590b7ca055fb6,32a278e36221341b534196d2bdf801f3c89db8bd..d99cfe46609f16d266bb3c7fdbb8213cf9265e34
--- 1/libraries/liblmdb/lmdb.h
--- 2/libraries/liblmdb/lmdb.h
+++ b/libraries/liblmdb/lmdb.h
@@@ -135,7 -135,7 +135,7 @@@
   *
   *    @author Howard Chu, Symas Corporation.
   *
-  *    @copyright Copyright 2011-2017 Howard Chu, Symas Corp. All rights reserved.
+  *    @copyright Copyright 2011-2018 Howard Chu, Symas Corp. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted only as authorized by the OpenLDAP
@@@ -200,7 -200,7 +200,7 @@@ typedef int mdb_filehandle_t
  /** Library minor version */
  #define MDB_VERSION_MINOR     9
  /** Library patch version */
- #define MDB_VERSION_PATCH     21
+ #define MDB_VERSION_PATCH     22
  
  /** Combine args a,b,c into a single integer for easy version comparisons */
  #define MDB_VERINT(a,b,c)     (((a) << 24) | ((b) << 16) | (c))
@@@ -210,7 -210,7 +210,7 @@@
        MDB_VERINT(MDB_VERSION_MAJOR,MDB_VERSION_MINOR,MDB_VERSION_PATCH)
  
  /** The release date of this library version */
- #define MDB_VERSION_DATE      "June 1, 2017"
+ #define MDB_VERSION_DATE      "March 21, 2018"
  
  /** A stringifier for the version info */
  #define MDB_VERSTR(a,b,c,d)   "LMDB " #a "." #b "." #c ": (" d ")"
@@@ -576,7 -576,7 +576,7 @@@ int  mdb_env_create(MDB_env **env)
         *      <li>#MDB_NOTLS
         *              Don't use Thread-Local Storage. Tie reader locktable slots to
         *              #MDB_txn objects instead of to threads. I.e. #mdb_txn_reset() keeps
 -       *              the slot reseved for the #MDB_txn object. A thread may use parallel
 +       *              the slot reserved for the #MDB_txn object. A thread may use parallel
         *              read-only transactions. A read-only transaction may span threads if
         *              the user synchronizes its use. Applications that multiplex many
         *              user threads over individual OS threads need this option. Such an