feat: remove "aws-sdk" dependency (deliveryhero#33)

closes deliveryhero#25

BREAKING CHANGE:
Removes compatibility to Serverless 1.3 and lower

Bump version to 0.6.0 (deliveryhero#24)

fix: solve problem with potentially existing method responses and new…

… ones (deliveryhero#18)

fixes problem that caused method responses to be empty when there already was an empty method response (regression in 0.5.6).

fixes deliveryhero#17

Mapping response code (deliveryhero#16)

* fixed problem with missing responce headers

* added test

* updated patch version

* fixed mapping response codes

* added object existence validation

* modify forming response method

* added new test

* added dependOn section

* updated version

chore: bump patch version

Merge pull request deliveryhero#7 from 9cookies/fix/concurrent_modifi…

…cation

Changes creation of documentation parts to happen sequentially instead
of concurrent.

fixes deliveryhero#6, closes deliveryhero#7

initial serverless-aws-documentation release with bugfix