added hangup after dial for more reliability using callback.
Changed all io going through generic routines in isdn_common.c
Added missing call to dev_free_skb on failed dialing.
Added uihdlc encapsulation.
Fixed isdn_net_setcfg not to destroy interface-flags anymore.
Misc. typos.
a corresponding interface instead of looping over all interfaces.
Activate Auto-hangup-timer only when interface is online.
Some bugfixes in the dialing-statemachine.
Lot of bugfixes in sk_buff'ized encapsulation handling.
For speedup connection-setup after dialing, remember sk_buf that triggered
dialing.
Fixed isdn_net_log_packet according to different encapsulations.
Correct ARP-handling for ETHERNET-encapsulation.
Fritz Elfert