Increase POLICY_BUF_LEN to 72 to accomodate IPv6 exit policy items.

Fixes bug 9596; bugfix on 0.2.4.7-alpha.
Fix an assert when disabling ORPort with accounting disabled.

The problem was that the server_identity_key_is_set() function could
return true under conditions where we don't really have an identity
key -- specifically, where we used to have one, but we stopped being a
server.

This is a fix for 6979; bugfix on 0.2.2.18-alpha where we added that
assertion to get_server_identity_key().
fix two cases where we were printing unsigned int as %d
fix whitespace in log message
Don't preprocess torify

Since torify has been removed from tsocks, it doesn't need to be
preprocessed. Closes #5505.
Changes file for 5505
test-network.sh: tools dir in PATH, parameterization
fix confusing whitespace
fix another confusing whitespace instance
remove changes files that are already merged in release-0.2.4
what is logging "above" notice?
Mention "make test-network" in doc/HACKING
Add torify to EXTRA_DIST

Now that we no longer build it from torify.in, we need to list it
manually.
blow away three more changes files that got into 0.2.4
name it correctly, maybe
first draft of an 0.2.5.1-alpha changelog
0.2.5.1-alpha will come out before 0.2.4.18-rc, so get its changes too
bump to 0.2.5.1-alpha
give it a release blurb
one last teeny-tiny change