DOCS-1567 - Documentation download specified version of MongodB during setup

* Modified solutionsetup.cmd invoke to show option
* Some minor cleanup/edits

Signed-off-by: tycho garen <garen@tychoish.com>
DOCS-1583 - added steps to build basic docs on Windows

Signed-off-by: tycho garen <garen@tychoish.com>