[origin-ui-192] Handle cartridges restricted by gear size

We should specifically call out the case where they have selected mutually exclusive cartridges, and let them know there is no gear size that will satisfy the cartridges they've selected. 



> On Aug 15, 2014, at 3:24 PM, Fabiano Franz <notifications@github.com> wrote:
> 
> In console/app/assets/javascripts/console/form.js.coffee:
> 
> >            if $.isArray(params)
> > -            if params.length == 0
> > +            if $.isArray(params[0]) && params[0].length == 0
> We are covering all the listed cases. Are you suggesting here we have different messages for all of them? We have basically three error messages:
> 
> The owner of the selected domain has disabled all gear sizes from being created. You will not be able to create an application in this domain.
> The gear size small is not supported by this cartridge. Allowed for cartridge: medium, large.
> The gear size medium is not valid for the selected domain. Allowed for domain: small.
> —
> Reply to this email directly or view it on GitHub.