Add MetricName to parameters for ListMetrics if it is set
Merge pull request #131 from billhathaway/addCloudWatchMetricName

Add MetricName to parameters for ListMetrics if it is set
Added some utility functions to get current region, instance id, instance type, local ip, public ip
Merge pull request #132 from alimoeeny/patch-14

Added some utility functions to get current region, instance id, instanc...
Corrected the function names that were private by mistake
Merge pull request #133 from alimoeeny/patch-17

Corrected the function names that were private by mistake
create basic version of ListResourceRecordSets method
add params processing to ListResourceRecordSets
add more fields to recordset
ec2: Correctly refresh IAM credentials.

Analogous to the patch to sqs in #111.
Merge pull request #134 from nelhage/ec2-refresh

ec2: Correctly refresh IAM credentials.
dynamodb: scan support for large data sets
Merge pull request #138 from abursavich/master

dynamodb: scan support for large data sets
Refactoring ChangeResourceRecordSetsRequest to match the spec and simplifying ListHostedZonesResponse
Make sure ChangeResourceRecordSet complies with the spec
Adding Route53 change batch support
Add support for Message Attributes
Don't run check for attribute MD5 unless we pass message attributes
Merge pull request #141 from hayesgm/master

Add support for Message Attributes
Add DelaySeconds to the Message struct.
Use Message.DelaySeconds in SendMessageBatch to set individual message delay in the batch.