Update to 0.9.14

Hi, Ilya!

I have updated everything to 0.9.14. and slightly changed folder structure. Test6 on x64 throws on line 88:

`Unhandled exception at 0x000007FEE66542B0 (msvcr120d.dll) in liblmdb.test6.exe: 0xC0000005: Access violation reading location 0x000000003FE7ACE0.`

The only thing that I know for sure about unmanaged memory is that it is hard... Could you please have a look what is the problem?