As reported in [CORDA-1609](https://r3-cev.atlassian.net/browse/CORDA-1609),
`CordaRPCClientConfiguration.default` is not accessible from Java since
`default` is a reserved keyword.
As part of the refactor made in #2831, `CordaRPCClientConfiguration` went
from being a data class to an interface with a backing implementation of
type `CordaRPCClientConfigurationImpl`.
This resulted in Java users having to rewrite code that was on the form:
```java
final CordaRPCClient client = new CordaRPCClient(
nodeAddress, CordaRPCClientConfiguration.DEFAULT
);
```
to something like this:
```java
final CordaRPCClient client = new CordaRPCClient(
nodeAddress, CordaRPCClientConfiguration.Companion.default()
);
```
However, this does not work. The user would get a compilation error because
`default` is a reserved keyword in Java.
Since `CordaRPCClientConfiguration` has been made an interface, there is no
easy way of introducing a static final field on the interface from Kotlin.
Consequently, I've changed this back to using a `class` with a static field
named `DEFAULT` instead of the static method `default()`.
It should be noted that `default()` / `DEFAULT` is currently only used
internally to pass in default values in `CordaRPCClient.kt` and
`CordaRPCClientUtils.kt`. That said, it is exposed as part of our API
surface and consequently shouldn't be broken.
The latter means that in the above example, the user would actually not
have to provide the parameter at all:
```java
final CordaRPCClient client = new CordaRPCClient(nodeAddress);
```
As can be seen from the definition of `CordaRPCClient`:
```kotlin
class CordaRPCClient private constructor(...) {
@JvmOverloads
constructor(
hostAndPort: NetworkHostAndPort,
configuration: CordaRPCClientConfiguration = CordaRPCClientConfiguration.DEFAULT
) : this(hostAndPort, configuration, null)
```
The mentioned [refactor](7a077e76f0 (diff-0948c125db93a22263eb81eaf3161c17R65))
did not make it into the 3.1 release, so from an API-stability perspective,
this change can be applied without affecting our commitment to a
backwards compatible API..
* Progress Tracker doesn't mark as "green tick" a step which hasn't been set in the flow. Steps behind the current step, which were not processed ('an optional step') are now marked distingishly as green crossed sign for shell and as minus sign for ssh.
* Finality Flow sets the current step to NOTARISING only if the actual notarization is performed.
It's no longer used as we've switched over to AMQP for RPC calls so
remove it from everywhere and only use it for checkpointing
* Wire up demo bench post Kryo removal
* Test Fixes
* rebase and fix tests
* Test Fix
* wip
* revert changes to api now we don't need to add annotations
- Existing embedded Shell connects via RPC including checking RPC user credentials (before was a direct use of CordaRPCOps): in dev mode when console terminal is enabled, node created `shell` user.
- New Standalone Shell app with the same functionalities as Shell: connects to a node via RPC Client, can use SSL and run SSH server.
