[Enchancement] Don't print stack trace as errer output.

[xycabcd]

I think a stacktrace would not be useful to the user, and it also floods the console.
A long one for example. This whole thing will appear in the user's terminal if they mistyped the version number:

org.eclipse.aether.resolution.DependencyResolutionException: The following artifacts could not be resolved: org.springframework:spring-core:jar:lastest (absent): Could not find artifact org.springframework:spring-core:jar:lastest in central (https://repo.maven.apache.org/maven2/)
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:365)
	at org.codejive.jpm.util.Resolver.resolveArtifacts(Resolver.java:83)
	at org.codejive.jpm.util.Resolver.resolve(Resolver.java:41)
	at org.codejive.jpm.util.Resolver.resolvePaths(Resolver.java:47)
	at org.codejive.jpm.Jpm.path(Jpm.java:229)
	at org.codejive.jpm.Main$PrintPath.call(Main.java:330)
	at org.codejive.jpm.Main$PrintPath.call(Main.java:313)
	at picocli.CommandLine.executeUserObject(CommandLine.java:2031)
	at picocli.CommandLine.access$1500(CommandLine.java:148)
	at picocli.CommandLine$RunLast.executeUserObjectOfLastSubcommandWithSameParent(CommandLine.java:2469)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2461)
	at picocli.CommandLine$RunLast.handle(CommandLine.java:2423)
	at picocli.CommandLine$AbstractParseResultHandler.execute(CommandLine.java:2277)
	at picocli.CommandLine$RunLast.execute(CommandLine.java:2425)
	at picocli.CommandLine.execute(CommandLine.java:2174)
	at org.codejive.jpm.Main.main(Main.java:658)
Caused by: org.eclipse.aether.resolution.ArtifactResolutionException: The following artifacts could not be resolved: org.springframework:spring-core:jar:lastest (absent): Could not find artifact org.springframework:spring-core:jar:lastest in central (https://repo.maven.apache.org/maven2/)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:473)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:261)
	at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:353)
	... 15 more
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.springframework:spring-core:jar:lastest in central (https://repo.maven.apache.org/maven2/)
	at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:42)
	at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:417)
	at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:260)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:537)
	at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:449)
	... 17 more