DOCS-1016 document missing sharding shell helpers
DOCS-1016 copy edits & more for shard helpers
DOCS-1016 remove several commands which are internal and rarely used
DOCS-1016 document missing sharding shell helpers
DOCS-1016 copy edits & more for shard helpers
DOCS-1016 remove several commands which are internal and rarely used
DOCS-1016 minor cleanup
DOCS-1016 minor cleanup
Merge branch 'master' of github.com:mongodb/docs into mongodb-2.2
Merge branch 'mongodb-2.2' of github.com:epc/docs into mongodb-2.2

Conflicts:
	source/reference/method/sh._adminCommand.txt
	source/reference/method/sh._checkMongos.txt
	source/reference/method/sh._lastMigration.txt
	source/reference/method/sh.getBalancerState.txt
	source/reference/method/sh.waitForBalancerOff.txt

DOCS-1016 fix merge conflicts
DOCS-1016 document missing sharding shell helpers
DOCS-1016 copy edits & more for shard helpers
DOCS-1016 remove several commands which are internal and rarely used
DOCS-1016 document missing sharding shell helpers
DOCS-1016 copy edits & more for shard helpers
DOCS-1016 remove several commands which are internal and rarely used
DOCS-1016 minor cleanup
DOCS-1016 minor cleanup
fix merge conflicts
DOCS-1131 maxSize=0