added simple info about iron mq
add a message posting and queue info retrieving
add a message getting and deleting info
add one more block
add push queues block
make ListQueues not related with Queue object
fix two small bugs
update docs to fit new method
add method to delete messsage queues and docs for it
implement peek methods
implement alerts api
remove duplications in docs
Merge branch 'master' of github.com:iron-io/iron_go

Conflicts:
	README.md
remove unnecessary line from delete method
Merge pull request #19 from rdallman/master

made default exponential backoff more sane
Merge pull request #18 from pyeremenko/master

Missing api and docs for MQ
Some bugs in the tests, was using nanoseconds for a sleep and wrong nil evaluation for the tests.
added all possible fields to code upload

as specified: http://dev.iron.io/worker/reference/api/#upload_or_update_a_code_package