Patches from fedora and fixes for LMDB backend

[Howard Chu]

Ignacio Casal wrote:
>     Seems like a silly question, since LMDB builds and runs perfectly well on
>     all platforms.
>
>     We simply choose not to support the Microsoft IDE.
>
>
> It is not a silly question when the supported microsoft build for cyrus sasl
> is msvc :)

Considering that I wrote much of the Windows support, and I wrote it for 
MinGW, I find that statement odd.
-- 
   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/