Use absolute URLs #16

[jaredlockhart]

Fixes #16

[coveralls]

Coverage remained the same at 100.0% when pulling e0797f2 on JaredKerim-Mozilla:16 into 0aab05b on mozilla:master.

[pdehaan]

nit: I think you could also just specify a default value in the function declaration:

function getMetadata(doc, ruleSet = metadataRules, context = {}) {
  ...
}

[pdehaan]

It looks like processors[] is an array, but not sure if you want to add any tests that have multiple processors to make sure that all processors get run and results are all applied.
Currently it looks like every ruleset only has 0-1 processors.

[pdehaan]

r+ w/ question about sampleHtml versus relativeHtml.

We can probably ignore the dumb processors[] and default arguments comments.

[coveralls]

Coverage remained the same at 100.0% when pulling 208a7ce on JaredKerim-Mozilla:16 into 0aab05b on mozilla:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 208a7ce on JaredKerim-Mozilla:16 into 0aab05b on mozilla:master.

[coveralls]

Coverage remained the same at 100.0% when pulling e7f2626 on JaredKerim-Mozilla:16 into 0aab05b on mozilla:master.

[pdehaan]

@jaredkerim Is this ready to merge?
I think once this lands, I can rebase my other PRs and use processors to convert keywords into array, etc.