DOCS-1270: seperating build directory from working set. incremental refactor.
Update 2.4.txt

Changed "numInititalChanks" to "numInititalChunks"

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-454 minor: add MongoDB version to homepage header :backport:

Signed-off-by: Sam Kleinman <samk@10gen.com>
DOCS-1274 correct mongodump example and copy edit --out description

Signed-off-by: Sam Kleinman <samk@10gen.com>
Grammar fixes + clarification @ "Data Modeling Considerations"

Signed-off-by: Sam Kleinman <samk@10gen.com>
minor: fixing dangling sentence.