mysql-copyright -> more fixes to deal with problems in removing temporary tar directory. Had to use `cd $WD` vs chdir($WD).
Servers.fgl -> made sure all charset files were accounted for (cp 1256 was missing)


Build-tools/mysql-copyright:
  more fixes to deal with problems in removing temporary tar directory. Had to use `cd $WD` vs chdir($WD).
VC++Files/InstallShield/4.0.XX-classic/File Groups/Servers.fgl:
  made sure all charset files were accounted for (cp 1256 was missing)
VC++Files/InstallShield/4.0.XX-gpl/File Groups/Servers.fgl:
  made sure all charset files were accounted for (cp 1256 was missing)
VC++Files/InstallShield/4.0.XX-pro/File Groups/Servers.fgl:
  made sure all charset files were accounted for (cp 1256 was missing)