Update README.md

It's "OS X" (since 10.8) not "Mac Os X" :-)
Merge pull request #2 from neuhaus/patch-1

Update README.md
Export more values from device
Export distortion k values as well
Make matrix getters generic
fixed spelling of IPD (not IDP), added linking with pthreads (for eg. ubuntu 13.04)
added lib linking and hidapi requirement to pkg-config file
Make the mouse cursor invisible in the OpenGL example
Merge pull request #4 from Fredz66/master

Make the mouse cursor invisible in the OpenGL example
corrected idp to ipd in the internal code
Added dummy driver/driver skeleton. Cleaned up example code. Moved projection eye projection matrix calculation to shared code. Removed unused OHMD_ROTATION_EULER from API. Fixed typo OHMD_LENS_HORIZONTAL_SEPERATION -> OHMD_LENS_HORIZONTAL_SEPARATION. Removed unused math code.
added missing dummy driver file to the repo
removed unused code in gl example
Update README.md

Added note about running the autogen script in the documentation.
added subdir-objects as an automake option for src directory for compatibility with newer versions of automake
Update README.md

Fixed formatting
removed Werror and added check for AM_PROG_AR
added windows 'binary' option to fopen in opengl example when loading shader files
merged in code_documentation feature branch, which adds doxygen code documentation
Updated README.md with doxygen link