Allow node in starting, running, stopping state to be restarted

[olegkovalenko]

MOTIVATION

There are times when its easier to relax state check from node should be running to node has to be in one of starting, running, stopping, however make sure you know what you are doing, because otherwise it could cause node downtime. Thus being able to restart node useful in such cases (suggested by @dmitrypekar):

• starting node, recalling that have to change some option, change it then call restart
• starting node, however something was misconfigured, figuring out what and then change to correct one

PROPOSED CHANGE

• relax restart node state check to node being in any of starting, running, stopping

Http server:

• allow node in starting, running, stopping state to be restarted

RESULT: ability to restart node in starting, running, stopping state

[dmitrypekar]

Merged. Thank you.

[olegkovalenko]

Thanks!