add osx support.

Signed-off-by: Sean Ogden <positivelyskewed.sf@gmail.com>
Fix e includes
Merge branch 'osx' of git://github.com/seanogden/HyperDex

* 'osx' of git://github.com/seanogden/HyperDex:
  add osx support.
Fix PACKAGE_VERSION checks
Build docs by default