RoSSH v5

Version 5 with bug fixes

You just need to update your client using our installation script. The server part is automatically upgraded when you use the upgraded client to make connections to them.

1. Fixes a bug where internal shell command (e.g., (unset PS1 PS2 PS3...) is recorded at remote .history making confusions.
2. Tries to fix a bug where remote echo of internal communications (e.g., BCrossh) got printed out.
3. Fix typo and print friendly message when no argument is given.