Fix issue with PackageMaker not being bundled with Xcode.
Merge pull request #9 from jacob-carlborg/osx_fix

Fix issue with PackageMaker not being bundled with Xcode.
Integrate osx/make.rb within osx/Makefile
Simplified extraction and build procedure - no more temporary files
Fix the Mac OS X installer for 10.6.
The Mac OS X uninstall command should have executable permission.
Merge pull request #12 from jacob-carlborg/osx_10.6-fix

Fix the Mac OS X installer for 10.6.
Add gitignore for the Mac OS X installer.