Description of problem:
during installation process (python setup.py install) submodule ga_impls is not installed. Running subscription-manager-gui is ended with errors:

Version-Release number of selected component (if applicable):

The master branch at GitHub (commit id: af7baf2063785a0bfcb72491ee2c286130430db2)

How reproducible:

Steps to Reproduce:
1. git clone https://github.com/candlepin/subscription-manager.git
2. cd subscription-manager
3. python setup.py build
3. sudo python setup.py install
4. sudo subscription-manager-gui

Actual results:

Running subscription-manager-gui is ended with following error:

Traceback (most recent call last):
  File "/usr/sbin/subscription-manager-gui", line 115, in <module>
    from subscription_manager.ga import gtk_compat
  File "/usr/lib/python2.7/site-packages/subscription_manager/ga_loader.py", line 116, in load_module
    return self._import_real_module(fullname, real_module_name, real_module_from)
  File "/usr/lib/python2.7/site-packages/subscription_manager/ga_loader.py", line 119, in _import_real_module
    ret = __import__(module_name, globals(), locals(), [module_from])
ImportError: No module named ga_impls


Expected results:

No errors at console :-)

Additional info:

When ga_impls is copied to desired place:

sudo cp -R src/subscription_manager/ga_impls /usr/lib/python2.7/site-packages/subscription_manager/

, then subscription-manager-gui works as expected.