ssl 2.5.4 changes: hostname validation, sslMode changes, and setParam for upgrades
replace colon with period
DOCS-1429: Clarify ramification of upsert in update wrt/non-atomic update-insert

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1429: edits to upsert issue with comments from @TylerBrock
minor fixes

Signed-off-by: Sam Kleinman <samk@10gen.com>
additional fix.
DOCS-2203: adding an example and cross reference
DOCS-1940: adding redirects for write commands