Point at a newer version of mongodb (2.4.3 instead of 1.0.1)

I only realized this was pointing to a stale version because commands in the rest of this document don't work on version 1.0.1.

Even better would be to point to a URL that always points to the latest stable version, if such a URL exists.

Signed-off-by: Sam Kleinman <samk@10gen.com>
Fixed broken link

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1487: adding new analyitics codes