Tor man page fixes
Hi Nick, I'm adding Stem integ test coverage for tor's man page. In particular it tests that...
* We can make a validly formatted man page.
* Lots of assertions on its content.
* Checks that the man page matches tor's actual config options, giving a nice reminder when adding to tor that we also need to update the manual.
In doing this naturally ran into a handful of minor issues with our present man page. See the **man_page_fixes** branch of my repository for the improvements...
https://gitweb.torproject.org/user/atagar/tor.git/log/?h=man_page_fixes
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