DOCS-1770 administration reorganization
agg-regorg: removing admin spec file
admin reorg: add remaining definitions, enter edits
admin-reorg: tutorial structure
DOCS-1770: admin-reorg facelift

- moved SSL to security
- changed links to Sharding & Replication tutorials
- split journaling internals out to reference
- made the yaml descriptions more varied
admin-reorg: toc reorganization
admin-reorg: change page title
admin-reorg: descriptions of files
admin-reorg: page descriptions and blurbs
Replaced duplicate link to Read Operations with one to Query Documents.

Signed-off-by: Sam Kleinman <samk@10gen.com>
squiggles: Fix-up-tilde-formations

Signed-off-by: Sam Kleinman <samk@10gen.com>
admin-reorg: redirects for new files / deleted files

Signed-off-by: Sam Kleinman <samk@10gen.com>