Chalice

* enhancement:rest-api:Make MultiDict mutable (1158)

* enhancement:dependencies:Update PIP to support up to 19.1.x (1104)
* bugfix:rest-api:Fix handling of more complex Accept headers for binary
content types (1078)
* enhancement:rest-api:Raise TypeError when trying to serialize an unserializable
type (1100)
* enhancement:policy:Update ``policies.json`` file (1110)
* feature:rest-api:Support repeating values in the query string (1131)
* feature:packaging:Add layer support to chalice package (1130)
* bugfix:rest-api:Fix bug with route ``name`` kwarg raising a ``TypeError`` (1112)
* enhancement:logging:Change exceptions to always be logged at the ERROR level (969)
* bugfix:CLI:Fix bug handling exceptions during ``chalice invoke`` on
Python 3.7 (1139)
* bugfix:rest-api:Add support for API Gateway compression (672)
* enhancement:packaging:Add support for both relative and absolute paths for
``--package-dir`` (940)

* bugfix:packaging:Fall back to pure python version of yaml parser
when unable to compile C bindings for PyYAML (1074)
* feature:packaging:Add support for Lambda layers. (1001)

* bugfix:packaging:Fix packaging multiple local directories as dependencies (1047)
* feature:event-source:Add support for passing SNS ARNs to ``on_sns_message`` (1048)
* feature:blueprint:Add support for Blueprints (1023)
* feature:config:Add support for opting-in to experimental features (1053)
* feature:event-source:Provide Lambda context in event object (856)

* enhancement:dependencies:Add support for pip 18.2 (991)
* enhancement:logging:Add more detailed debug logs to the packager. (934)
* feature:python:Add support for python3.7 (992)
* feature:rest-api:Support bytes for the application/json binary type (988)
* enhancement:rest-api:Use more compact JSON representation by default for dicts (958)
* enhancement:logging:Log internal exceptions as errors (254)
* feature:rest-api:Generate swagger documentation from docstrings (574)

* bugfix:local:Fix local mode issue with unicode responses and Content-Length (910)
* enhancement:dev:Fix issue with ``requirements-dev.txt`` not setting up a working
dev environment (920)
* enhancement:dependencies:Add support for pip 18 (910)