Fix grammar

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: updating formating of cluster backup with mongodump
Update diagnostics.txt

grammar fix

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: cleanup artifacts
DOCS-2605: clarify organization of db.collection.remove
DOCS-2527: ttlMonitorEnabled documentation
DOCS-2579: slight reorganization of security tutorials
DOCS-2608: fixing jumbled sentence
DOCS-2609: fixing objectID sentence
DOCS-2567 audit message details
trivial - change wording of a sentence
Update backup and restore role docs

The backup server doesn't do restores directly, so we shouldn't mention the backup service in the docs on the "restore" role.  Also added reference to mongodump and mongorestore.

Signed-off-by: Sam Kleinman <samk@10gen.com>
edits to built in role page