Add url field to hapi middleware options

[ethanrubio]

Currently, the config ignoreUrls won't work when working with a Hapi server, since the url field does not exist when runInRootSpan is called.

See #446

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[ethanrubio]

I signed it!

[googlebot]

CLAs look good, thanks!

[kjin]

Thanks for contributing this! Usually we would like a unit test to go a long with it, but since we have to fix this for other modules, we'll add a follow-up to add unit tests for each of the web framework modules.

This looks good to me, so I'll merge it as soon as the CIs pass.

[kjin]

v0.12 failures unrelated. Merging.