Merge commit 'tor-0.2.1.18' into debian-merge

* commit 'tor-0.2.1.18':
  bump to 0.2.1.18
  put in the full 0.2.1 release notes
  add a changelog entry for the upcoming 0.2.1.18
  make phobos's lines start with tabs again
  added LIBS=-lrt to Makefile.am for static libevent in the tor rpms.
  forward-port the 0.2.0.35 release notes
  add blurbs for recent release candidates
  Bump version to 0.2.1.17-rc-dev