Add PERMIT BOTH option, and minor enhancements

1) Add PERMIT ALL as a list type (allows whitelisting without alias->multiple manual rules)
2) Fix typo "beggining"
3) Improve SWITCH-CASE code flows in 2 places (avoid dup. code)
4) Improve explanatory text for deny/permit

Files modified:
  "pfblocker.inc"
  "pfblocker_lists.xml"
Add PERMIT BOTH option, and minor enhancements

1) Add PERMIT ALL as a list type (allows whitelisting without alias->multiple manual rules)
2) Fix typo "beggining"
3) Improve SWITCH-CASE code flows in 2 places (avoid dup. code)
4) Improve explanatory text for deny/permit

Files modified:
  "pfblocker.inc"
  "pfblocker_lists.xml"
Fix custom rules clear bug and enable custom rule testing.
unlink() can't delete directory, use "/bin/rm -rf" instead.
Remove use of $_GET wherever possible for security.
Continue change of $_GET to $_POST wherever possible.
Fix it so all ET-Open rules files get correct prefix.
Remove deprecated option
Add forwards as a configuration option instead of executing it on the command line
Unbound version bump to make use of forward-zone instead
Add a safety belt in case we get no values returned
If this is enabled then get_nameservers() should be used
Typo s/reveser/reverse
Typo s/bloc/block
Fix logging facilities

Include 'named' in the list of $separatelogfacilities in system.inc so that messages ONLY show up in resolver.log (and not system.log as well).
no longer needed
Merge pull request #603 from crocomo/bind

bind - logging facility & typos
Fix indentation of custom option
Bug fixes and replace $_GET with $_POST where possible.
varnish3 - fix xmlrpc sync option