Addresses issue #74
Add information about Xcode 5.0/5.0.1 and PackageMaker
The final release of Xcode 5.0 does not include OS X 10.9 SDK. OS X 10.9 support has been added in Xcode 5.0.1.
This addresses Homebrew/homebrew#22838
Use the following options to specify a custom Developer ID for signing code and installer package. -j identity sign the code with the specified signing identity -i identity sign the installer package with the specified signing identity
signing kernel extension and resulting installer package. * Fix typo that caused the 2.6.0 installer package not being signed.
The version of grep, that ships with OS X 10.8 does no longer support Perl regular expressions (grep option -P), therefore use perl instead.