Docopt handles `--help` automatically for us, however we've handled those
Errors the same as all others: by exiting with Return Code `1`, which is wrong
for a totally appropriate a quit on `--help`. Fortunately `docopt:Error`
provides an `exit` helper function that discriminates properly between fatal
and non-fatal errors and exist appropriately.
This patch makes sure we use that handy function in case we encounter such an
error in the CLI of ethkey, ethstore and whisper. Thus those are now giving
the appropriate Return code on `--help`.
fixes#8851
* getting started
* wip wip
* add parsing of pool-size and enable panic-hook
* more cli options
* remove explicit unwrapping
* bump dependencies to parity-jsonrpc
* add tests
* remove tests
* bump jsonrpc
* Remove unused dependencies
* add logging to the cli
* Fix so `FilterManager` drops its resources
* Introduced an AtomicBool flag in FilterManager to cancel the `Decryption Worker Thread`
* Added some very basic test to faulty arguments
* ignore privileged port test
