Fix build script/ package so that it installs correctly about centinel

[ben-jones]

@gsathya, I just tried installing my centinel-dev package on a vm and got the following error. Any thoughts on why this is happening?

centinel@centinel:~$ centinel
Traceback (most recent call last):
File "/usr/local/bin/centinel", line 9, in
load_entry_point('centinel-dev==0.1.3', 'console_scripts', 'centinel')()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 351, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2363, in load_entry_point
return ep.load()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2093, in load
raise ImportError("%r has no %r attribute" % (entry,attr))
ImportError: <module 'centinel.client' from '/usr/local/lib/python2.7/dist-packages/centinel/client.pyc'> has no 'run' attribute

[gsathya]

you need to change https://github.com/iclab/centinel/blob/master/setup.py#L20

[ben-jones]

closed by #52