fixed some path issues in test script
removed include of dist config in test configuration files
better message when no hosts are available
don't append to out/err files from _swiftwrap; create new files instead (this doesn't matter much in normal swift runs, but if direct:// is used, it makes a difference)
detect if the jvm is being debugged and prevent hang checker from exiting the application in that case
check data dependent exceptions on closed nodes
updated configuration files for dynamic output tests
removed explicit run configuration passing through command line (done automatically by swift)
added some debugging info for when a node gets shut down
more useful error message
automatically convert trace("%s") arguments to string
added direct mode; added SWIFT_CONF_PATH
Merge branch 'master' of github.com:swift-lang/swift-k