Update TagLib of binary gem for Windows to 1.8
Update CHANGES for 0.5.2
Bump version to 0.5.2
Fix docs to use File.open instead of File.new with block

Thanks to @aaronmoodie for noticing.
Bump bundler dependency to ~> 1.2.0 to fix travis build
Fix yard warnings: @param tag has unknown parameter name
add wrapping for TagLib::ID3v2::Header.
Regenerate SWIG wrappers using swig 2.0.9
Also make swig look in /usr/local/include for headers