drop --enable-recursor; add --enable-tools, preparing for core/tools packaging split. Thanks to Nido Media of #autotools for autoconf/automake help

Conflicts:
	pdns/Makefile.am
update pdns-tools rpm
add pdns-tools deb
only install tool manpages when --enable-tools is given
include dnstcpbench manual page
recursive make considered harmful
correct recursive make invocation
make sure we dist man dnstcpbench