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* Simplified setattr
* Added loading attributes in class
* Added ability to specify failing test cases in plugins

Closes #28

It turns out setting "plugins" as a @list in the context causes the
"plugins" property to expand to its full name.
Removing the type causes a regression of #17, which I initially missed
because the test in #17 was wrong.

Closes #26

Closes #26

There was no need to add @list, and it was causing JSON-LD to expand the
URI of 'plugins'

* Improved debugging (back to using Flask's built-in mechanisms)
* Recursive model loading from json
* Added DEVPORT to Makefile
* Accept json-ld input. Closes #16
* Improved Exception handling in client
* Modified default plugin selection to only include analysis plugins
* More tests

Closes #18

Closes #17

* Added conversion plugins (API might change!)
* Added conversion to the analysis pipeline
* Changed behaviour of --default-plugins (it adds conversion plugins regardless)
* Added emotionModel [sic] and emotionConversion models

//TODO add conversion tests
//TODO add conversion to docs

Bug-fixes and improvements:
* Closes #5
* Closes #1
* Adds Client (beta)
* Added several schemas
* Lighter string representation -> should avoid delays in the analysis
  with plugins that have 'heavy' attributes

Backwards-incompatible changes:
* Context in headers by default
* All schemas include a "@type" argument that is used for autodetection
  in the client

... And possibly many more, this is still <1.0

This should help with performance issues with models that have large
private variables.

* Added pre-commit: http://pre-commit.com
* Fixed flake8 errors
* Added flake8 pre-commit hooks
* Added pre-commit to Makefile
* Changed VERSION numbering
* Changed versioning to match PEP-0440

Also:
 * Shelve -> Pickle to avoid weird db problems
 * Serving schemas and contexts

There are also some slight changes to the JSON schemas and the use of
JSON-LD.