Push jolokia utilities down to jolokia.js

[phantomjinx]

Consider pushing these jolokia-utils down to hawtio-next then export them due to their generic nature.

[tadayosi]

Or rather better to directly contribute them to jolokia.js.

[abkieling]

@grgrzybek What do you think about this proposal?

[tadayosi]

@abkieling It's being fixed at jolokia/jolokia#809. Once merged, we can update jolokia.js and drop the utils from hawtio-online.