Feature #130 Adding possibility to specify a category to rule and scores
all_points allow to have a sum of points from all categories, for the specified object
Feature #130 Reverted changes to add_points method signature, and tested it
Included Category usage in Point paragraph in README
Fixed Typo mistake
Feature #130 Reverted back to all_points method
Added also some test #points, #add_points, an #all_points
Re-reverted points method to use a :all parameter to sum all points
Updated README
Updated tests
Updated dummy
Use of fetch when initializing rule attributes to and category from options hash
Reverted indentation in class Rule