Fixed getting security groups for EC2 instance.
Changed to use try/catch instead of erlang:function_exported since it is more reliable
Added tags support, IAM roles support  and use new version of the API.
Initial version of the cloud trails implementation
added support for put_bucket_policy api
Initial verions of IAM API support. Not a complete version yet
Initial version of SNS API support. Not a complete version yet
header file for sns api
Fix R15 crypto
Merge pull request #1 from alertlogic/fix_r15_crypto

Fix R15 crypto
Added 2 more helper functions for updating cloud trail configuration
add timeout for httpc
Initial SNS support
Added support for listing/deleting endpoints and listing applications on SNS
Improved error responses
Typo
Result fix
http://docs.aws.amazon.com/sns/latest/dg/SendMessageToHttp.html implemented
Missing getters
Region removed