Revision of spanish translation. No more fuzzy strings (-63). No more empty translations (-91). Fuzzy strings are automatically added when source string change in code. Fuzzy strings must be regularly reviewed.

def update(obj, kwargs):
    """
    Update obj attributes with values from kwargs
    """
    for k,v in kwargs.items():
        if hasattr(obj,k):
            setattr(obj,k,v)