add release doku

fix travis npm publish

Proxy integration improvements (spring-media#36)

* improve Proxy integration return values
* fix ProxyIntegrationEvent body type
* consistently use statusCode
* add aws-lambda as dep
* improve README

prepare version 0.7.1

improve documenation for proxyPath + add tests (spring-media#32)

prepare new release 0.6.2

prepare new minor version 0.6.1

version update: 0.6.0

Added SQS route handler (spring-media#16)

added sqs route handler

Merge pull request spring-media#12 from spring-media/passthrough-context

Context Object is available now