Fixes #912.
Merge pull request #913 from fgabolde/topic/issue-912

Fixes #912 (send_file may return 500 instead of 404 for non-existent files)
Add warning about behaviour of hooks with multiple packages loaded by 'load_app'.
add Changelog mention

closes #915
Merge branch 'pr/915' into devel
ignore non-HASH request bodies

Generally, request bodies are mixed into the `params` HASH.  This
works great except when the request body doesn't deserialize to a
HASH.

This change short-circuits this process and leaves the request body
as is so that it can be deserialized later in the request cycle if
desired.
add changelog
Merge branch 'pr/869' into devel

Fixes #869
mention chef cookbook

Fixes #914

Conflicts:

	CHANGES