Added price metadatum to score setup (p) menu.

Example:

    Krummzeit (2014) - setup

    1: catalog number: AWN-012
    2: paper dimensions: 17 x 11 in
    3: tagline: for seven players
    4: price: \euro 66 / \$84
    5: title: Krummzeit
    6: year: 2014

    >

Also alphabetized metadata in score setup (p) menu.