Update examples/sqs.js

Update second example's callback to include err as first argument.
Added an example for how and where parameter / options objects can be used
Adding error handling to http(s) requests.
Add support for EC2 metadata API, including automatic lookup of IAM access key and secret ID when IAM roles are used. This commit also increases the timeout of mocha tests in order to allow for testing IAM role credential cache expiry. Increased test timeout also increases liklihood of tests completing when run from a slower internet connection.
add mapbox maintenance note
Merge pull request #69 from ianshward/metadata-api

Add support for EC2 metadata API, including automatic lookup of IAM acce...
Merge remote-tracking branch 'miccolis/handle-http-errors'

Conflicts:
	lib/aws.js
Merge pull request #63 from rschooley/patch-1

Update examples/sqs.js
bump version
checkCredentials should not continue when encountering errors
Merge branch 'master' of git://github.com/oliverlloyd/aws-lib
simplify filtering example
make readme examples consistent
js syntax highlighting for examples
return the request object in call.

will allow for doing other things with the request like setting
timeouts and such.
Updated default API version because the specified version of AWS API did not support filters. Added a test for filters. Also a minor refactor that makes sure the options always come after the Action in the request body to make debugging easier.
Merge branch 'master' of git://github.com/derekpitt/aws-lib into test
v0.2.0
Handle single error responses from AWS.

The result object can either have `Error` or `Errors` depending on the
service or the number of errors generated.

Refs livelycode/aws-lib/issues#42
Add STS support for cw, ec2, elb, simpledb, and sqs.