* init lerna, move files into ./packages

* move test files into ./packages

* more moving around

* fill out package.json files

* fixing imports

* more fixing of imports, and horribleness

* convert examples, fix linting errors

* add documentation

* update docs

* get tests passing

* update travis.yml

* update travis.yml

* update travis.yml

* update test script

* update travis.yml

* update scripts

* try simplifying travis.yml

* ocd stuff

* remove slate-core-test-helpers package

* add package readmes

* update reference docs structure

* refactor slate-simulator into its own package

* add docs for new packages

* update docs

* separate benchmarks into packages, and refactor them