added iron_cache_rails to the client libraries
added info to enable/disable error queue, screenshot of queue in hud
adds IronSharp to community libraries lists
reorders community libraries
#367 adds node-ironio to IW community libraries
minor copy edit
Added notes about batch get and batch peek relating to sparse queues.
Specifying US-East only for SG access
Merge pull request #360 from iron-io/error_queue_additional_doc

added info to enable/disable error queue, screenshot of queue in hud
Merge branch 'gh-pages' of https://github.com/iron-io/docs into cache-rails

Conflicts:
	css/application.css
Merge pull request #359 from iron-io/cache-rails

added iron_cache_rails to the client libraries
Updated error queues section

Took out beta reference.
Made capitalization more consistent.
small grammatical fixes
Added custom headers for push queues info.
Merge pull request #371 from iron-io/custom-headers

Added custom headers for push queues info.
added "Testing on localhost"

with a reference to ngrok.
Merge pull request #372 from shaharsol/patch-1

added "Testing on localhost"
link to comparison matrix
Merge pull request #374 from iron-io/ys-linkfix

Link to comparison matrix
Added note on queue name (spaces should URL encode)