Code updates

vgvgf has completed the map rendering upper and lower layers, based on the sue445 documentation. Old player code already had support but the new implementation from scratch is cleaner and more efficient.

EN.I has uploaded the first revision of RPG Maker 2000 Test Suite. A collection of test cases to debug RPG Maker emulation.

Wiki updates

Information about RTP replacement has been added to the documentation wiki.

Original RTP distribution have file names in Japanese. The docs show about that fact and how to support RTP file names for the EasyRPG RTP replacement. You can get info about the differences between 2000 and 2003 files and how to treat with them.