Add needed basic jio libraries and adjust test accordingly.

- multiple gadget repositories
- multiple gadgets per repository
- API to select proper gadget based on what it provides.

Do use "data-gadget-source" / "data-gadget-handler"  for all gadgets not
just for inline ones (without an URL).

Do use "data-gadget-source" / "data-gadget-handler"  for all gadgets not
just for inline ones (without an URL).

be adjusted in respective requirejs hook.

InteractionGadget. Extend example.

Add Gadget.remove and test for it.
Add GadgetIndex.getGadgetIdListFromDom and test for it.

bootstrap. Do not set any class attributes (they are useless for
RenderJs itself).

Extend addGadget API to include a mandatory ID.
Improve handling of data-gadget-source and data-gadget-handler and add a
test for this.

Add basic example how to use.

names.
Extend docstrings and remove unused code in tests.

Release it under 0.1 version.

Use custom bindReady rather than hooks in tests.
Stop tests execution to allow RenderJs finish loading gadgets thus we
can really test when this is done.

Catch events only once.
Remove dead code.
Simplify addGadget.

This will be done by default by RenderJs.

loaded using requirejs.

interaction method (use as a 'transport' HTML events).

Add new version of RequireJs.
Refactor RenderJs init part.

can have accurate information for list of all gadgets.

Use for this internally root dom element.

Add a configuration variable that can turn this feature on / off
(default on).