corrected typo

Signed-off-by: Sam Kleinman <samk@10gen.com>
Trivial copy editing

Signed-off-by: Sam Kleinman <samk@10gen.com>
info on changing system.profile on a secondary

Signed-off-by: Sam Kleinman <samk@10gen.com>
add link to rs maintenance tutorial

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: changing structure
add info on eval access to the built-in roles document

Signed-off-by: Sam Kleinman <samk@10gen.com>
adding a link and rephrasing clause