Don't fail silently if loaded before/without jQuery

[searls]

It's pretty confusing when affix() is missing just because it was loaded before jQuery.

[hayesr]

Thanks for pointing this out, I've been banging my head against the wall. BTW, this is exacerbated by the caching thing you already know about. ( testdouble/jasmine-rails#100 )

For my own needs I've worked around it by manually requiring a spec_helper file with jQuery and jasmine-fixtures in it.

[searls]

Agree. I'm not sure what approach I prefer? I could just wrap the whole thing in a defer (setTimeout 0) so that load order doesn't matter for tools that insist on loading specHelpers BEFORE any application code.

But that's nonstandard and baffling, so perhaps just throwing an Error is best? I bet @davemo will have an opinion on this.

[searls]

Landed in 1.1.0