fix traceback when typing enter with history disable (method Printer().ask())
clean quit on server disconnect
prompt in color
add login in prompt
new cli exceptions class
proper handle auth failure

* printer and history merged
* printer now handle raw_input and getpass function
* clierror module to cccli.exception
* lot of reorganisation
* history saving of question is disable
* split tql spec and readme
* update tql spec and readme content