Bugs and issues fixed:
1-Adding new categories and functions with javascript without warnings. Now, when a function or category is created, the fields in main question editing page are automaticaly updated with the values that has been set in the respective function/category Forms.
2-Translation strings are now fixed
New features:
1-Refactoring of  question.php and qtype...php. Now the code is more clean and optimized(the correct responses are only calculated one time unlike before) acording to the other question types.
2-Adding suport for programmedresp questions that working with multiple responses (in progress).