* Add kafka_python library to the Python action runtime

* Update doc and Python package sniff test

Please squash into previous commit

* set fileHandleLimit to 1024 and add testcase

* Make test tighter.

* Handle application error (handled exception).

If the activation result is an activation error, treat it like a successful
activation with one distinction: rather than projecting the result per the
path specified in the URL, project only the error field. The resulting JSON
value must be of the expected type otherwise, an appropriate error is reported.

This change will allow an HTTP response to set it own status code on error
for example, but also means that the action producing the error response must
be aware of the extension type.

The extension type is not passed to the action - perhaps it should be. Even so,
in the case of a sequence, one would need to forward this type to individual
components to handle the error case (or result) correctly.

Add tests for failure to activate because of the throttles.

* Tighten extension match, add matcher unit test.

* Consolidate extension maps.

* Remove print, fix typo.

* Fix log format of logged responses

* Add Akka Logging to OpenWhisk

* Code review comments

- Display proper error message during a blocking invocation when result flag is being used

- When copying an action ensure that parameters and annotations are also copied

Adding a script that creates one-off snapshots, continuous replications and has the ability to play back all snapshots of a database.

- Includes tests
- Includes documentation

Signed-off-by: Markus Thoemmes <markus.thoemmes@de.ibm.com>

Add test for max URL path.
Match nginx max url.

Switch exceptions to the appropriate type.
Add test case for update of sequence with no components.

Constructing new objects results in a loss of the DocumentRevision and thus breaks caching in the invoker.

Move HTTP util to container package where it is actually used (it is no longer used elsewhere).
Remove a lot of now dead code from HTTP util.
Remove connection pool since there is at most one connection to a container at any given time.

Changed container response from Option(int, array of bytes) to Either(container error, container result)
with more useful typing.
Detect larger than allowed response from container and truncate it properly and wrap with container error.
Some logging tweaks.

Fixes #1646
Add --full flag to display complete API details

Pass transaction id in case of errors.

Add support for formdata.

Allow binary content type: The http web action must respond with either a plain text body or a base64 encoded body.
The header content-type must be set to interpret the reponse if base64 encoded body is given. (This applies to a JSON response as well.)
Content-type must be one of known Spray types - no custom headers permitted.

Make activation entity limit configuration from singleton matching other limits.
Pass description for size violation.
Update tests.

Include test case for API created with action name containing all support characters

Allow result projection by property name.
Fix view to lookup identity for namespace.
Add headers to parameters passed to action.
Pass request metadata to anonymous activations (previously was only for meta actions).
Pass projection path to action.
Support an extension following action name to specify content type for the response. Only supported values are accepted and others rejected with appropriate messages. Extension is requierd.
Allow http response type which sets headers and code directly from the action.
Provide default projection for supported media types.
Catch timeout exception due to long activation and return proper code.
Add test for web actions from CLI.

Add tips for using wskadmin to docs.

- As a .zip
- Use common utilities module
Refactor routemgmt actions
- No longer store API configuration in a separate database
- Use the API GW as the API configuration data store
Small updates to automated tests

Add test case to validate API GW filtering when >1 APIs exist
Fix test that creates an API from swagger

Swagger test fix for PG environments (namespace for CLI can vary)

Consistent API GW tenant instance support across all actions
- default to 'openwhisk'

Remove deprecated use of leftshift operator

Note: Skipping python and swift CLI tests - container test is still in place - while investigating Travis.

Re-enable UTF8 entity test (has been OK for a while).

Makes field path extraction explicit.
Deprecated JsHelpers trait to allow Catalog to transition.
Reduce test verbosity.
log activation ids when matching more (or less) than N ids.
Fix bad log message where there are no creds.