2002-11-30 0.6

 - speed up significantly (about 3 times) zone loading
   by reorganizing sstr pool to be a hash table.  Restrict
   length of text records to 254 bytes.
 - implemented proper signal blocking during zone reloads
 - cleaned up signal handling (use POSIX signal primitives)
 - added some comments to the code
 - do not use *log() routines with user-controllable data,
   changed logging and added length checks for command-line
   parameters - all to avoid possible buffer overruns after
   user (not network!)-supplied data

2002-11-28 0.5

 - fixed a bug with incorrect formatting of IP address
 - allow last digit of 127.0.0.x A result in lists to save space
 - first release with a few changes (too much changes was before)
