Update version and news for 3.0.7
Build fixes for the Kerberos UAM

o missing Kerberos includes and libraries
o conditional code that handled the case when Kerberos is not available
  was c/p from etc/afp/status.c and wasn't updated for the changes introduced
  in the bugfix for #531
Add exit code

Use dedicated exit code for AFP connections that were dropped
by the client right after the TCP handshake.
Fix ressource fork name conversion

Function was using ad_path() which returns a pointer to a static
string twice in the rename() functions.

Fixes bug #534.
Update news