Changes to withFields docs
Finish changes for withFields; closes #319
Updates/fixes to changes API doc
Updates to changes command; fixes #414
Merge @neumino's draft and fix conflicts

Conflicts:
	api/javascript/manipulating-tables/index_create.md
	api/python/manipulating-tables/index_create.md
	api/ruby/manipulating-tables/index_create.md
Language changes for indexCreate
Close issue #195
Clarify do args; fixes #297
Add get/contains example
Changes based on review
Updates based on reviews; Ruby and Python files
Closes #400 - pushed by EOD 4/17
Correct typos and spelling errors
Merge branch 'pr/418'
Add Objective-C driver; closes #164
Added rabbitmq tutorial

Approved by @neumino
Contributions from @chipotle, @mglukhov and @coffeemug
Merge pull request #420 from rethinkdb/josh/rabbitmq

Added rabbitmq tutorial
RabbitMQ links in Integrations page
Merge pull request #422 from rethinkdb/josh/rabbitmqlinks

RabbitMQ links in Integrations page
Add group by date/time period recipe
Merge branch 'issue-416-time-recipe'
Closes #416