fix getpost memory leak. fixes miguelfreitas/twister-html#161

libtorrent/src/torrent.cpp

@@ -954,6 +954,7 @@ namespace libtorrent
 			printf("piece read error (database corrupt?) - setting we_dont_have(%d)\n", j.piece);
 			we_dont_have(j.piece);
 		}
+		if (j.buffer) m_ses.free_disk_buffer(j.buffer);
 		(*reqs)--;
 
 		if (!(*reqs)) cond->notify_all();

src/clientversion.h

@@ -8,7 +8,7 @@
 // These need to be macros, as version.cpp's and bitcoin-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       0
 #define CLIENT_VERSION_MINOR       9
-#define CLIENT_VERSION_REVISION    20
+#define CLIENT_VERSION_REVISION    21
 #define CLIENT_VERSION_BUILD       0
 
 // Set to true for release, false for prerelease or test build