Changes:
o several new options in config file revelant when sending messages to Plus phones;
now supports ICQ gateway, too
o yet another change in Era handling code
o improved way to parse email address from both environment variables and config file
o improved hostname detection code
* converted to use buildlink.mk files
* simplified patch-aa
SMS provides a useful command-line interface to sending SMS
to mobile phones on Polish GSM networks.
Documentation is available only in Polish.
Fixes pkg/11933.
