This gives easy access to test if the "user/visitor" has an account, is
a contributor and if she is core.
This is used to display some account information.
This changes how we wait for web3 and accounts to be available and
renames web3Provider to ethProvider as we could be able to swap the
different providers (ethers.js vs. web3)
the web3 we are using is old and everything will change with web3 1.0
which is currently in beta for ages.
ethers.js seems to be a bit more lightweight and implements pretty much
the same API so let's give it a try.
By default kredits-contracts gets the networkId from the web3 object.
This causes some random JSON RPC errors when using MetaMask:
https://github.com/MetaMask/metamask-plugin/issues/1538
This set the default networkId to 17 which is our custom private
network. For development purposes the networkId can also be set
dynamically through the config:networkId local storage entry.
If no web3 is provided from the browser we check if a
config:web3ProviderUrl item is set in localstorage.
If yes we connect to that provider otherwise use the default config.
Helpful for working simultanously with different chains and providers.
bumi
