Apple OSX Documentation

Updated the OSX documentation fathead parser based on the original one in UNCLEAN.
This matches most of the fathead requirements (I believe) and now pulls down and processes
the documentation from developer.apple.com.

Be aware it takes a very long time to make a mirror of the site using wget. There is a sitemap
provided by Apple (its the start point of the wget command in fetch.sh) which might be able to 
speed this up as each link appears to be the correct one.

This still isn't pep8 compliant due to some lines being too long, and isn't 100% Pythonic but 
is close enough for the moment.

Finally the output.txt is not added (nor the wget output) as it is well over the 1 meg limit specified.