DOCS-942 add show databases as alias to show dbs
DOCS-154 DOCS-816 2.2 replica set behaviors
DOCS-154 review edits
DOCS-154 typo
DOCS-918 forEach javascript function information
DOCS-918 incorporate jeremy's feedback
DOCS-154 review edits
DOCS-154 review edits
DOCS-154 final review edits
Merge pull request #548 from epc/DOCS-978-mongodb-232

formatting of default language
Merge pull request #538 from kay-kim/foreach-1

Foreach 1
Merge pull request #544 from bgrabar/secondaries-154

DOCS-154 DOCS-816 add 2.2 replica set behaviors
Merge pull request #519 from epc/DOCS-942-show-databases

DOCS-942 add show databases as alias to show dbs (delay merge to 2.3.1)