The counts are for "reachable" trackers, ie. trackers that haven't
timed out or been disabled for one reason or other.

It sorts by name instead of number (should probably add options for sorting).
It now also takes torrents to list as optional arguments. Added ratio to
btcli stat display. Changed the help text for both commands. Some code shuffle
and other tweaks.

improved error output.

not need to know about the sample time.

instead of megs. Similarily, display rates >= 1000kB/s in MB/s instead of
kB/s.

The add and del commands adds or removes torrents from this library.
The start and stop commands are used to active or deactivate torrents.
Also, a mechanism for qeurying data on torrents has been added. It's
only used by the btcli list and stat commands yet though.

btcli has been split into different files for each command.

Both btpd and btcli now use misc/btpd_if.h for all ipc definitions.

Misc changes:
- struct metainfo is gone. Use the new mi_* functions.
- Add printf format type checking where appropriate.