changes by EP to !runimage

line l0 deleted as no longer need to reload prog in different memory PAGE with RISC OS. Likewise lines 4060 onwards (which did that) removed

renamed from PADDY to !runimage and put in RISC OS app shell

wrote HTML help file from printed manual etc

LINE 3852: added, to switch back on keyboard auto-repeat if exiting due to an error or pressing ESCAPE