clearing terminal is now a function of class  Printer.
Command clear, now use it.

The fd default argument in the out and err fonction causes bad issues because it was initialized
when the class was instanciated. Consequently this patch set the default argument to None and permit you
to change the stdout and stderr file descriptor without causing troubles

new function to get term size

expert has its own history

remove global --force-yes options

fix command history traceback

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

read from argline like stdin
fix bug on debuging

* 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