Haproxytool

* Remove shebang from cli, map and server

* Remove shebang and executable bit from files
* Remove unnecessary print statement
* Print version of haproxyadmin library as well
* Require haproxyadmin version 0.2.2 or higher

* Make \_\_init\_\_.py more pylint friendly
* Remove encoding declaration as default encoding is UTF-8
* DOC: Update README to include examples for changing address/port
* Fix wrong continued indentation, add space after comma
* Fix useless object-inheritance
* Fix the way we use Exceptions
* Add support in server command to change address/port
* Report when a acl doesn't have entries
* Report when a map doesn't have entries
* Remove unnecessary text from example outputs
* Catch Invalid input for ACL/MAP cmds

* Catch IncosistentData exception in server command
* Add more keywords in setup.cfg

* Remove redundant call to print()
* Simplify the call of sub commands
* Remove redundant header
* Fix ordering of module so pylint is happy
* Add docstring and polish a bit the output
* Move the list of valid cmds in \_\_init\_\_
* Update installation instructions

* Update setup.cfg