add rec_control dump-nsspeeds

git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@3131 d19b8d6e-7fed-0310-83ef-9ca221ded41b
unpair name/proto for NS speed management. Fixes #710

git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@3132 d19b8d6e-7fed-0310-83ef-9ca221ded41b
revert r3123, reopening #716

git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@3133 d19b8d6e-7fed-0310-83ef-9ca221ded41b
Merge remote-tracking branch 'git-svn'