Solitaire Plugin Revised

[jasonf]

Added the Undo feature (use your Rewind button, or Ctrl-R).
Added the deck-turnover hotkey (the "1" button on your remote).
Added automatic flipovers for the top card in a column.

I didn't thoroughly test as much as I'd like to have, so shout if something is broken/funky.

[jasonf]

v1.7 posted on the wiki.

- Fixed issue with cards being lost from the deck when Undo was used
- Fixed issue where red cursor appeared over half of deck when the "1" key was used to recycle the working cards

It's also sporting the new setup program to help make installing plugins easier (other plugin developers are free to use it, and source code/instructions are on the wiki in the development section)