Pymailq

* Added examples in pqshell MAN page.
* Improved documentation generation.
* Corrected some typos in setup.py

* pyqueue Python module becomes Python package.
* Added pqshell for interactive queue management.
* Added SPECS file for RPM packaging. Thanks to Nils Ratusznik.
* Added MAN page for pqshell.
* Corrected setup.py to reflect module to package transition.
* Corrected setup.py to ship additionnal files.
* Corrected shell's subprocess errors handling.
* Updated code documentation.

* Added COPYRIGHT and LICENSE.
* Added code documentation.
* Added setup.py for Python packaging.
* Corrected mails queue load error handling.
* Corrected mails arrival_date handling.

=== 26/04/2014 ===
* Initial release of pyqueue.