use client.Endpoint() everywhere
include NextToken in DescribeStackEventsResult
Allow describing stack parameters/outputs

In order to support parameterized stacks,
add display of stack parameters.

Also out display of stack outputs as they are related.
improve mapping
add some autoscaling api actions
add support for IamInstanceProfileName
add GetTemplate action for cloudformation
refactorings, add PutMetricData action
refactorings
add enw style DescribeImages action
update aws pricing
remove aws-dump-instance-types (no more gokogiri dependencies)
Merge branch 'add_stack_description_command' of https://github.com/nightlyone/gocloud into nightlyone-add_stack_description_command

* 'add_stack_description_command' of https://github.com/nightlyone/gocloud:
  Allow describing stack parameters/outputs

Conflicts:
	aws/cloudformation/describe_stacks.go
Merge pull request #5 from vito/next-token

include NextToken in DescribeStackEventsResult
use client.Endpoint() everywhere
Merge pull request #4 from vito/use-client-endpoint

use client.Endpoint() everywhere
fix test
update pricing assets
update travis.yml
install goassets in travis