stlinkv1_macosx_driver: add Mavericks

The diff was as easy as adding a new select
option for 10.9 version in install.sh, and
a little patch fixing com.apple.kpi.libkern
version string.

Don't forget to install latest libusb, i.e.
libusbx in homebrew!
Merge pull request #198 from jsarenik/osx_tarball

stlinkv1_macosx_driver: add Mavericks