Add default hosts.txt file

The hosts.txt has been copied over from the Java I2P router.

Signed-off-by: Kill Your TV <killyourtv@i2pmail.org>
Merge tag 'debian/0.1.0-2' into ubuntu/precise

i2pd Debian release 0.1.0-2
prepare for release

Signed-off-by: Kill Your TV <killyourtv@i2pmail.org>