nstall from github zip failed

ENVIRONMENT
OSX Mavericks

Install from github zip failed

```
sudo python setup.py install
running install
running bdist_egg
running egg_info
creating googlegantt.egg-info
writing requirements to googlegantt.egg-info/requires.txt
writing googlegantt.egg-info/PKG-INFO
writing top-level names to googlegantt.egg-info/top_level.txt
writing dependency_links to googlegantt.egg-info/dependency_links.txt
writing manifest file 'googlegantt.egg-info/SOURCES.txt'
reading manifest file 'googlegantt.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'googlegantt.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.9-intel/egg
running install_lib
running build_py
creating build
creating build/lib
copying googlegantt.py -> build/lib
creating build/bdist.macosx-10.9-intel
creating build/bdist.macosx-10.9-intel/egg
copying build/lib/googlegantt.py -> build/bdist.macosx-10.9-intel/egg
byte-compiling build/bdist.macosx-10.9-intel/egg/googlegantt.py to googlegantt.pyc
creating build/bdist.macosx-10.9-intel/egg/EGG-INFO
copying googlegantt.egg-info/PKG-INFO -> build/bdist.macosx-10.9-intel/egg/EGG-INFO
copying googlegantt.egg-info/SOURCES.txt -> build/bdist.macosx-10.9-intel/egg/EGG-INFO
copying googlegantt.egg-info/dependency_links.txt -> build/bdist.macosx-10.9-intel/egg/EGG-INFO
copying googlegantt.egg-info/requires.txt -> build/bdist.macosx-10.9-intel/egg/EGG-INFO
copying googlegantt.egg-info/top_level.txt -> build/bdist.macosx-10.9-intel/egg/EGG-INFO
zip_safe flag not set; analyzing archive contents...
creating dist
creating 'dist/googlegantt-0.6.1-py2.7.egg' and adding 'build/bdist.macosx-10.9-intel/egg' to it
removing 'build/bdist.macosx-10.9-intel/egg' (and everything under it)
Processing googlegantt-0.6.1-py2.7.egg
Removing /Library/Python/2.7/site-packages/googlegantt-0.6.1-py2.7.egg
Copying googlegantt-0.6.1-py2.7.egg to /Library/Python/2.7/site-packages
googlegantt 0.6.1 is already the active version in easy-install.pth

Installed /Library/Python/2.7/site-packages/googlegantt-0.6.1-py2.7.egg
Processing dependencies for googlegantt==0.6.1
Traceback (most recent call last):
File "setup.py", line 13, in
"PIL",
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/core.py", line 152, in setup
dist.run_commands()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 953, in run_commands
self.run_command(cmd)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/install.py", line 76, in run
self.do_egg_install()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/install.py", line 104, in do_egg_install
cmd.run()
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 211, in run
self.easy_install(spec, not self.no_deps)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 427, in easy_install
return self.install_item(None, spec, tmpdir, deps, True)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 478, in install_item
self.process_distribution(spec, dist, deps)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 519, in process_distribution
[requirement], self.local_index, self.easy_install
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 570, in resolve
requirements.extend(dist.requires(req.extras)[::-1])
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2149, in requires
dm = self._dep_map
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2141, in _dep_map
for extra,reqs in split_sections(self._get_metadata(name)):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2560, in split_sections
for line in yield_lines(s):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 1854, in yield_lines
for ss in strs:
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 2163, in _get_metadata
for line in self.get_metadata_lines(name):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 1181, in get_metadata_lines
return yield_lines(self.get_metadata(name))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 1178, in get_metadata
return self._get(self._fn(self.egg_info,name))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources.py", line 1238, in _get
return self.loader.get_data(path)
zipimport.ZipImportError: bad local file header in /Library/Python/2.7/site-packages/googlegantt-0.6.1-py2.7.egg

```