DOCS-1375: clarifying link
DOCS-1399 aggregate helper method throws exception upon error

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1398 in hashed shard key add blurb and link to split command

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1396 content audit

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: edits to titles for DOCS-1396
SERVER-7589 Clarify conflict with Ubuntu packages

Signed-off-by: Sam Kleinman <samk@10gen.com>
SERVER-7589 Add mongodb-server package as well

Signed-off-by: Sam Kleinman <samk@10gen.com>
SERVER-7589 Clarify conflicting packages for Debian installation instructions

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1279 add shell method version()

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