**Problem**
WHen portfile is not found, sbtn will try to start the server
even when the desired command is shutdown.

**Solution**
When the command is just shutdown, don't start the server.

[1.x] Shortcut sbtn shutdown

**Problem**
sbt -V tries to show both the sbt version and the runner version,
and ends up creating target directory even on a non-sbt directory.

**Solution**
If the current directory doesn't have a build, just display the runner version.

[1.x] fix: Avoid creating target on sbt -V

**Problem**
The error message uses name, which may not match the actual project id
that the user can type into the shell.

**Solution**
Use displayBuildRelative to calculate the proper subproject id.

[1.x] fix: Fix SIP-51 message

[1.x] Update lm-coursier-shaded to 2.1.8

**Problem**
sbt 1.10.10 still has retry problem with compilation.

**Solution**
Revert the retry logic back to the time when we only retried IOExceptions.

[1.x] fix: Use Retry.io for compilation

**Problem**
sbt --client doens't work on Windows because the runner script
passes itself to the server, but it's unable to launch Bash script.

**Solution**
Pass in the bat version instead on Windows.

[1.x] fix: Fix sbt --client on Windows