Fix release 2.3.0

Including:
 * make test relative to snakebite package [test]
 * add default port for namenode [feature]
 * test config support for trash [test]
 * add --usetrash, more tests, support for --skiptrash [feature] [fix]
 * fix bug in parser usetrash parameter [fix]
 * cosmetic changes - better print info/error [fix]

Change-Id: I91ab95fa4d78f3c51be9b0787cc958ef9fc6ef32