merging changes from google code

merging changes from google code. lots of stuff
more changes from Google Code/web docs
more changes from Google Code/web docs
more changes from Google Code/web docs
more changes from web docs
readme updates
https://github.com/lok/BayesianKit
updating readme
updating for lion/xcode 4.2
merging changes from Google Code SVN repo

CGFloat -> PKFloat (double)
-[PKParser parse:error:]
-[PKParserFactory parserFromGrammar:assembler:error:]
more changes merged from Google Code

PLATFORM() macro
running under 10.8/10.7
running under 10.8/10.7
running under 10.8/10.7
building cleanly
building cleanly
ignores
Optimised images
merging from SVN
merging SVN