message: clean submodules before update/init
diff: #!/bin/bash -e
  +pushd tor && git checkout -f . && popd
  +pushd leveldb && git checkout -f . && popd
  git submodule update --init
  autoreconf --no-recursive --install
  pushd tor
  -git checkout -f .
  patch --no-backup-if-mismatch -f -p0 < ../tor-or-am.patch
  patch --no-backup-if-mismatch -f -p0 < ../tor-am.patch
  ./autogen.sh
  popd
  pushd leveldb
  -git checkout -f .
  patch --no-backup-if-mismatch -f -p1 < ../leveldb.patch
  popd
  