Update contents (Demo 2.1, v0.5.0)

[list] [*] The Skill feature has been added to the game. You can change a character's skill from the Party menu. New skills are learned by level-up. (The 'Spin', 'Throw' and 'Summon' commands that were used by Ignus, Teryl, and Frida, respectively, in the previous demo are now selectable as skills.) [*] Minor graphical updates. [*] Minor difficulty balance changes. [/list]