Added an optimized and improved implementation of joe's fixed point atan2 algorithm so that it now works correctly over the full range of  fixed point numbers and should be much faster too.
Added an optimized and improved implementation of joe's fixed point atan2 algorithm so that it now works correctly over the full range of  fixed point numbers and should be much faster too.

git-svn-id: 1a3934ecdee2dfe077e3a1b34320424617f14597@7 d3e1167c-abe1-51d5-8199-f9061ebe54e4

sunsided/libfixmath,sunsided/libfixmath