Begin merging XuLA2-LX9 and XuLA2-LX25 versions of ZPUino into one directory.
Further changes for merging XuLA2-LX9 and XuLA2-LX25 versions of ZPUino.
Removed because the USB UART has been moved into the XESS VHDL_Lib.
+ Removed compiler flag for ZPUino 2.0 since this is for ZPUino 1.0.
+ Changed board identifiers.
+ Changed board model to xula2-lx25.
+ Changed synthesis options to make the ZPUino work correctly on the XuLA2-LX25. (Not sure why this is needed. Synthesized design should work regardless of these options.)
+ Replaced the serial UART with a UART that works over the USB link of the XuLA2 board.
+ Replaced the serial-BREAK reset with a reset that can be triggered by the host PC over the USB link.
+ Added bootloader files in case somebody doesn't want/have the compiler to create them.
+ Added command file for setting-up the PATH environment variable needed to use the Makefile on Windows.
Added README file with instructions for compiling the ZPUino for the XuLA2 board and setting up a connection between it and the IDE.
Added that programming ZPUino into XuLA only needs to be done once, after which it remains in the serial flash.