Reversed the chronological order, fixed some language
Added README in markdown format, same content as README
Added discussion document of performance and design goals

This is one useful place to start for contributors.
Minor updates to API document

mht format didn't look good in my browser, so sadly there is now an htm format and a whole directory.
Fixed size of par results struct

Earlier on there were at most MAXNOOFBOARDS/20 DD tables, now there are MAXNOOFTABLES.
Revert "Fixed size of par results struct"

This reverts commit da6978aca3d457930ce3a42c132c59819fd2d58d.
Revert "Revert "Fixed size of par results struct""

This reverts commit 6d2a679206a7732d3efaa6e52406cb89a363bb70.