tor: bump to latest stable
reaver: respect DESTDIR
butch template: improve removal of symlinks before rebuild

BUTCH_IS_REBUILD var is superfluous, when we have a filelist
its definitely a rebuild.

the part removing the files from the filelist was bogus in 2 ways:
1) it removed any file, not just symlinks
2) it used xargs, which is dangerous when a filename contains spaces.
butch template: get rid of double slashes in relocate phase
butch template: copy files in etc var srv instead of symlinking

additionally, we do not overwrite existing files by default.
in case files in those locations already exist, the user can
manually upgrade them by diffing against the version in
/opt/packagename.
there's a new env variable that can be set to force overwriting.

this solves the problem that updating/rebuilding programs with
custom configs in /etc, etc used to remove/overwrite those files.
openssh: fix path to xauth

without setting this path, openssh assumes the X11 binaries
live in /usr/X11R6/bin.
openssh: fleshing sshd_conf
openssh: updating service to reflect new conf