Random heart colors, typo fix

This fixes a typo in which a helpful hint referring to Thieves' Town would erroneously refer to it as Thieves' Tower. Additionally, the heart color selection now supports random which will randomly choose between the other four presented options. This random feature is also supported by the adjuster.

EntranceRandomizer.py

@@ -196,7 +196,7 @@ def start():
                              Select the rate at which the heart beep sound is played at
                              low health. (default: %(default)s)
                              ''')
-    parser.add_argument('--heartcolor', default='red', const='red', nargs='?', choices=['red', 'blue', 'green', 'yellow'],
+    parser.add_argument('--heartcolor', default='red', const='red', nargs='?', choices=['red', 'blue', 'green', 'yellow', 'random'],
                         help='Select the color of Link\'s heart meter. (default: %(default)s)')
     parser.add_argument('--sprite', help='''\
                              Path to a sprite sheet to use for Link. Needs to be in