This dynamically hashes the app id which makes it easier to manually set
contract addresses. This is useful in development environments with no
default network ids.
The used apm (which is part of the app id hash) is configurable.
usage:
new Kredits(provider, signer, { addresses: { Kernel: '0x...' }, apm: 'aragonpm.eth' })
this mainly allows us to check if an account has a certain role and thus
if the account can call specific contract functions.
At some point we might want to extend that to support the check if an
account can call the function. For that we would need to have a mapping
between function names and roles, which we have not right now.
AppIds are used to lookup the actual contract addresses of each app.
Because of different registry names (open.aragonpm.eth vs. aragonpm.eth)
we have to use different ids in the local dev chain and in the
testnet/mainnet. To allow this we need to set the appids dynamically.
There is an open aragon issue to solve this and also allow to use
open.aragonpm.eth in the devchain by default.
https://github.com/aragon/aragen/issues/10
This allows to filter contributors by the account entries.
For example:
```js
Contributor.filterByAccount({site: 'github.com'}); // returns all
contributors with github account
Contributor.filterByAccount({site: 'github.com', username: 'bumi'});
// returns bumi
```
This moves the whole checks if everything is running into its own class
and is no longer inside the different functions.
Makes the functions smaller and the healthcheck can be used from the
client only if wanted/needed.
