Replace healthStore w/ withHealth HOC

* RPC methods$() are now called after the API is set
* Fix accountsInfo$() race condition (accountsList)
* Render component decorated with withHealth immediately (fix
"Connecting to node" not rendering)

Use new version of @parity/light.js

Use remote @parity/electron

Update README.md

Update link to light.js

Fix indentation in ToS

build windows binary using wine

Update README.md

Switch from Travis to Gitlab

Use @parity/contracts