Remove grab, install, jar, run, uninstall, and war commands from the CLI

[wilkinsona]

As far as we can tell, the CLI's support for running and packaging applications is very rarely used. As such, the ongoing maintenance cost now outweighs the benefits. We are going to remove the following commands from the CLI:

• grab
• jar
• run
• war

[wilkinsona]

Spring Cloud is dropping support for its CLI that plugs into ours using the install command. As such, we can consider dropping the install and uninstall commands as well. This would significantly reduce the CLI's footprint as it would allow all of the Maven resolver code and dependencies to be removed.

[wilkinsona]

We've decided to remove install and uninstall as well.