1.12.0

• 233:
  Fix RequestHandler::waitRequest to not unregister the request if it
  times out.
  Request::relinquish() replaced by Request::unregister().
• 218:
  Fix write to lunchbox::MemoryMap on MSVC
• 218:
  Fix missing file:line print in backtrace() on MSVC
• 217:
  Implement lunchbox::getRootPath()
• 216:
  getLibraryPaths: Fixes library path results for OSX and linux
• 213:
  getExecutablePath: More sensible behaviour for OS X app bundles