patch: add sqlite3 backend support to the cyrus-sasl sql plugin

[Alexey Melnikov]

Maxim Gorbachyov wrote:

>Hello.
>
>Proposed patch (see attachment) adds sqlite3 backend support to the cyrus-sasl
>sql plugin. The patch does not interfere with present sqlite(v2) code. Build
>infrastructure is updated (tested on Debian Sid and on Ubuntu Hardy), but this
>update does not address win32 systems.
>  
>
I've added Win32 support. The change compiles for me, so I will 
integrate your patch. I might clean it up a bit later.

>It seems like this patch is a solution for:
>https://bugzilla.andrew.cmu.edu/show_bug.cgi?id=2754
>
Yes. I had my own version, but I never compiled it.

>I've added the patch to bugzilla:
>https://bugzilla.andrew.cmu.edu/show_bug.cgi?id=3112
>