Virtual Motherboard Sources

adding help for all option dialogs

renaming splitter.html to index.html

renaming debugger.html to index.html

moving instruction elp into subdirectory

improved contex help, registering subwindows, update of image in editor tabs

Fixing register stack display, instruction help, persistent width and height, size of button and status window

adding splitter and debug help, run menu, run options, commandlines, fake stdin, and mmix-io

working memory, registers inspector, and standard input from the trace window.

fixed register display in mmixvd

first working version of mmixvd with assembler and trace