Revert "(trunk) only make .xz tarballs in make-dist. anyone who doesn't have xz by now has no excuse."

This reverts commit f74e30fe879d0dc4dfe2dc6acb9c7dd62d8e1e21.
Revert "in 'make distcheck', build xz and bz2 instead of gz"

This reverts commit d812d3f1171443a45f7b726afd7d44396b83b276.
Disable Gtk and Qt build in some distribution
Daemon can force use of syslog
Block status over rpc
pieces complete count over rpc
Next DHT announce query over rpc
Torrent label feature
T remote get/set the labels
"This if statement is redundant" -- Suggested by wereHamster
Can add peer to torrent
T remote add peer feature
Allow query diskstatus over rpc
T remote query the diskstatus
WebClient query the diskstatus too
get the availablePeersFrom over rpc
Send hostname in rpc query
Disable dbus support in Qt client
Fix: use syslog is needed
Use older AC_PROG_LIBTOOL