build: fixing problem with sphinx.
minor: restructuring administration landing page
DOCS-1541 adding links to backup service in backup documentation
Update fundamentals.txt

Signed-off-by: Sam Kleinman <samk@10gen.com>
db.version() works for the mongos process as well

Signed-off-by: Sam Kleinman <samk@10gen.com>
build: refactor utility functions and meta script