Added setup.py and tryton.cfg #985

* Fixed the version number 2.6.0.1dev
* Added a working setup.py which installs the modules
* Added a hr.xml file (empty)
* Fixed the dependency on tryton.cfg as the module name should be
  company and not employees
Updated setup.py and __init__.py #985

* Added doc string in setup.py and Development status set to 'beta'
* Updated description text for module
* Fixed module name in __init__.py
Merge pull request #2 from tarunbhardwaj/master

Completed task #985