Replace CGEventTap with NSEvent equivalent in NJRHistoryTrackingComboBox.
Don’t leak PSBeepAlerts.
Fix a constant in some currently unused code.

(The numeric value is the same, but this constant is of the correct data type.)
Don't manually remove Subversion directory (long-obsolete) or Headers folder (no longer installed) from built products in packaging script.
Don't build Sparkle separately.

This was likely a workaround for a long-fixed Xcode issue; in addition, it triggers an additional issue in which an extra symlink inside Sparkle.framework into the UninstalledProducts directory is generated, which breaks code signing.
Make code signing work with version 2 signatures (required on 10.9.5 and 10.10+).

Also, don’t require building with *my* Developer ID certificate.

Thanks to Craig Hockenberry for the great tutorial.

http://furbo.org/2013/10/17/code-signing-and-mavericks/
Fix punctuation in release notes.