* Fix padding around app name in startup message when it contains non-ascii characters
* fix conflict, allow ending space only for odd length strings
* move startup message tests to listen_test.go
* add black color to defaultColors overriding function, fix (again) padding in startupMessage
* Fix padding around app name in startup message when it contains non-ascii characters
* fix conflict, allow ending space only for odd length strings
* move startup message tests to listen_test.go