0.2.2: New methods.
    - get_sections_names()
    - get_keys_from_section(section)

0.2.1: Undocumented changes.

0.2.0: Minor fixes and String Hex conversion.
    - Fix use String Vectors: Change Vector trait from Copy to Clone. 
    (String has not Copy trait).
    
    - New methods get_from_hex<T> and get_vector_from_hex<T>, to convert Hex
    numbers from strings to integers.

0.1.0: First Release.