Fixing an issue with the AgentTicketMove "New Window" and additional CLI scripts

This pull request proposes a fix to a issue with AgentTicketMove - MoveType - "New Window" (http://bugs.otrs.org/show_bug.cgi?id=9756)

By removing the lines proposed, the "New Window" behaviour will be consistent with the "Dropdown" MoveType behaviour. Additionally, without the patch, you can never cancel a operation after opening the window and come back to the same ticket state (by just opening the window, you already changes attributes of the ticket, which is wrong in my opinion). 

The scripts in the second commit are just additional scripts to provide more useful functions via CLI.