build: more clear build configuration interface, and fixes
build: reorganizing pdf building.
Update read-operations.txt

I corrected the grammar on line 8 where 'application request data' was incorrectly equated with 'queries'. A query is a request; therefore, 'application data requests' makes sense.

Signed-off-by: Sam Kleinman <samk@10gen.com>
build: fix .htaccess generation
build: pdf fixing clarification.
DOCS-1126 sharding intro
DOCS-1126 initial reorg of sharding content

Signed-off-by: Sam Kleinman <samk@10gen.com>
sh-reorg: second pass at editing and reorganization
DOCS-1126 sharding reorg, clarify chunk and chunk of documents

Signed-off-by: Sam Kleinman <samk@10gen.com>
sh-reorg: edits to high level content.
DOCS-1126 sharding-reorg add images

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: edits
DOCS-1126 sharding-reorg update images