Install Python and Ruby header files
Merge branch 'install-header-files'
Revert "Merge branch 'upgrade-ruby'"

This reverts commit 875a18cf62a878857f659a4e51b1bc2f767e5db5, reversing
changes made to 323a5d00fef406bf85f8833d61ab7e456cc97c84.
Upgrade Ruby to 1.9.2p330
Merge branch 'upgrade-ruby'
Include ZIP package
Merge branch 'include-zip-package'