Ignore *.o in nmap-update.
Remove libxml2.2.dylib from the OS X application bundle.

This file is automatically copied into the bundle by py2app. It is
already present as a system library on OS X 10.6 and later. Shipping our
own caused a compatibility problem on OS X 10.9:

Could not import the zenmapGUI.App module: 'dlopen(/Applications/Zenmap.app/Contents/Resources/lib/python2.6/lib-dynload/glib/_glib.so, 2): Symbol not found: _xmlBufContent\n  Referenced from: /usr/lib/libxslt.1.dylib\n  Expected in: /Applications/Zenmap.app/Contents/Frameworks/libxml2.2.dylib\n in /usr/lib/libxslt.1.dylib'.

http://seclists.org/nmap-dev/2013/q4/85