Update email address and copyright years
doc/man: misc fixes to man pages The help text in particular was copied from the output of the '-h' option which was referring to "this help message", this was OK on the command line but it sounds a little off in a man page.
Rename am7xxx_mode_switch to am7xxx-modeswitch The new name matches more closely the name of the binary used in recent usb-modeswitch versions.