Add iOS 7 fonts

Added whatever showed up in

```
	const char *format = "<tr><td class=\"font_face\" style=\"font-family:%1$s\">%1$s</td><td class=\"iphone\">7.0</td><td class=\"ipad\">7.0</td></tr>\n";
	for (NSString *familyName in [UIFont familyNames]) {
		for (NSString *fontName in [UIFont fontNamesForFamilyName:familyName]) {
			printf(format, [fontName UTF8String]);
		}
	}
```

that wasn't already in the list.