qingy 0.9.6

- Detached qingy from its controlling tty when starting sessions.
- qingy no longer tries to kill its GUI as it should not hang any more.
- Fixed bug that made shells other that zsh be invoked with a double '-';
that is --bash instead of -bash, which is the correct form for login
shell invocation.
- Added proper escaping for session names, removed quoting around them.
- Added support for selecting whether to start the X server in the same
tty qingy is running in (default for qingy), or in an unused one (default for startx).