v1.3.0 "Eranda's Love" release

Brief update to refamiliarize myself with the script, in preparation for expanding the scope of the project this summer.

The main differences:

• Now features new character art by MakioKuta.
• Removed the custom sprites in favor of ones in RPGMaker.  Sorry, but they clashed with the rest of the art.
• Tightened the script just a little.
• Changed the name of Deedee's class.  This isn't that important, but I can go into why later.