reload on HUP signal doesn't work; remove it
remove dumpami info command

Is not used and is implemented in a way that there's some unefficient
code executed every time an AMI event is read.
remove some unused code
remove not working/useless info commands
remove unused code
remove unused entry from REGCOMMANDS

These commands use either the other CTI command system or don't exist
anymore.
remove logfromclient CTI command

Not used by the CTI client.
remove unused CTI command sipnotify and record

Not used by the CTI client.

Also remove unused method in the Command class.
remove unused Events header in Login AMI action

It does nothing in asterisk 11.
remove unused method in AMIClass
remove unused import
Merge branch 'master' into remove-unused-or-useless

Conflicts:
	xivo_cti/cti_command.py
	xivo_cti/interfaces/interface_ami.py
Merge remote-tracking branch 'origin/remove-unused-or-useless'