- max_by_item and min_by_item: To find the highest or lowest vote of an item
- max and min: To find the highest or lowest vote of all items

Add a function to retrieve the configuration and a series of checks to validate it.

Remove the 'Weighted average function', it was useless and can be recreated by choosing the right function.
The module allows you now to define your own function to get C and m. Check the VotingAPI Example module also provided in the module.
UI is cleaner and easier to use.
Removed the loop in hook_votingapi_results_alter(), it's faster now.
Implements hook_uninstall().
Documentation will follow soon.

Added a new function 'Weighted average mean' which use the same computation but with different variables.
Added a configuration page where you can choose the tags and the functions to use to compute C and m.
Documentation will follow.