DOCS-3158: made json pprinting consistent
DOC-3172: remove duplicate mongodb in footer
minor: syntax fix
Minor correction and clarifications on $position

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-2998: clarify new default bindip settings
DOCS-3078 modify kerberos section in authentication concepts page
trivial: tweak two sentences in authentication page
trivial: fix missing backtick
DOCS-3020 part 2 write concern intro and replica set write concern concepts pages and uri connection string page
change security reference heading
remove commands from security refernece page
DOCS-3107: refomulate discussion of authentication and localhost exception
DOCS-3000: keyfile clarification
DOCS-3020 gle updates
DOCS-3186 remove word beta
DOCS-3192: correct duplication in list
DOCS-3157: clarification to limits syntax
options replacements
DOCS-3215: redirects for search landing page
DOCS-3127: adding bson type 6 to page