Everything so far

I'm sorry that bower_components/ is part of the PR. I kept as a part of the repo because I wanted to make it easy for people to test the extension (clone and load). Please ignore those files.

`method-list` is not ready yet because `core-selector` has bugs.
Also the idea was to put `object-tree` and `method-list` in separate tabs with `paper-tabs`. But there have been problems with `paper-tabs` and vulcanize and I've not been able to use it.

Thank you