fix extracting NextToken parameter from XML response
Merge pull request #274 from mcz/master

fix extracting NextToken parameter from XML response
Add Region EUCentral (eu-central-1)
Merge pull request #277 from rubyphunk/region_eucentral

Add Region EUCentral (eu-central-1)
Added CreateVolume to EC2 API
Merge pull request #278 from libc/add-create-volume-to-ec2

Added CreateVolume to EC2 API
Standardise error handling

- 400 errors would pass through some functions
- Extraneous panic() on error
Merge pull request #279 from sweeney/kinesis_error_handling

Standardise Kinesis error handling
Add condition expression support

Reimplement older mechanisms on expressions

Update query builder tests
Merge pull request #280 from SteelPangolin/expressions

Add expression support to DynamoDB
name of tag for versions in VersionsResp is 'version'
Merge pull request #281 from laslowh/master

name of tag for versions in VersionsResp is 'version'
Support Route 53 private hosted zones

- http://aws.amazon.com/releasenotes/3851444330669243
- http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/hosted-zones-private.html
  - As of Nov 7, 2014 (JST), API document seems to be differ from actual
    implementation.
  - By looking aws-sdk-core-ruby's API manifest commit:
    - There's no "HostedZone>VPC", "HostedZone>VPCs" in ListHostedZoneResponse
    - There's no "HostedZone>VPCs", but "VPCs" exists outside of
      "HostedZone" in GetHostedZoneResponse
    - https://github.com/aws/aws-sdk-core-ruby/blob/3f176f9bf1c0e35307e8c75820a131dd5c4ade22/aws-sdk-core/apis/Route53.api.json#L1321-L1328
allow specifying additional conditions when generating post form
arguments
Merge pull request #261 from sorah/support-r53-private

Support Route 53 private hosted zones
Merge pull request #282 from freehaha/master

allow specifying additional conditions when generating post form args
Add qeury iterator
Merge pull request #284 from masahide/add-query-Iterator

Add qeury iterator
Encode the URL path with url.String() instead of url.RequestURI()
Merge pull request #283 from xsleonard/fix-s3-v4-sign

Explicitly use path?query for V4 signatures