Commit Briefs
portable: gitwrapper: remove unused LIBS
libevent doesn't need to link against libevent, but it will need its CFLAGS.
portable: sync gitwrapper deps
This reduces the dependency set, and syncs with got. From naddy@.
portable: configure gitwrapper/gotd paths
Rather than hard-code assumptions into gitwrapper and gotd binaries, allow for some values to be overriden at compile time. This should help portability.
portable: gotd/gitwrapper: update for libs
Bring gotd and gitwrapper closer to how libraries are detected.