DOCS-1879: clarification for install guides
DOCS-1878 refactor recomedation in faq about reclaiming disk space
minor: fixing text of pdf link
Correct spelling mistake

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: adding link
minor: fixing redirect
ref-reorg: moving reference documents to section reference
minor: changing the base hierarchy of output latex
conf: minor tweak to rst section value
DOCS-1871 best practices for naming config servers