Multi-selection in query parameter 'allowableValues' listbox for 'array' param type.

[valdemon]

Updates the #304 behaviour - now it checks the 'array' param type instead of 'allowMultiple' attribute.
Partly adresses also the #118. It's also associated with swagger-api/swagger-js#83, but can live without it, though.
I haven't attached the generated swagger-ui.js to the pull request.

[fehguy]

based on our discussion in swagger-core, does this still apply?

[valdemon]

Hi,
yes, it does.
Based on our discussion I've slightly modified the commit, adding backward compatibility for the allowMultiple attribute. Now the list box will be multi selectable for both cases: array type query parameter and a query parameter annotated with allowMultiple attribute.

[valdemon]

@fehguy: what is your opinion? At least swagger-jaxrs users won't experience the list multiselect feature without this fix.

[fehguy]

Looks good, thanks for submitting

[fehguy]

Note, there was also a bug in swagger-core that affects the generation of the drop-down, see swagger-api/swagger-core#483

[valdemon]

So it seems that was a root cause of the issue. Nevertheless, I prefer current state of the art, because it's now enough to declare the jaxrs resource method query param as an array or List of enum type and you have a multiselectable list out of the box without a superfluous 'allowMultiple' attr.
When the 'format' for an array type param will be in future spec then we'll be done without a need for any jaxrs (or other) framework interceptor for converting CSV param value to requested multiple value query param format. Cheers :)