Added support for 64 pixel modified board, the first to work properly.

Raised version number to 0.2.1.
Restored ICCF board URLs for non-working modified boards, commented out location for modified boards.
Added data pointing back to iccf.com for all boards except 64 pixel one.
Added commented out links to ICCF site for 64 pixel board.
Moved board modification attempts to the board-mod and board64 branches until the bugs are sorted out.
Merge pull request #16 from Hasimir/master

board mod branching