puzzles: refactor and resync with upstream

This brings puzzles up-to-date with upstream revision
2d333750272c3967cfd5cd3677572cddeaad5932, though certain changes made
by me, including cursor-only Untangle and some compilation fixes
remain. Upstream code has been moved to its separate subdirectory and
future syncs can be done by simply copying over the new sources.

Change-Id: Ia6506ca5f78c3627165ea6791d38db414ace0804

1 files changed, 0 insertions, 19 deletions

diff --git a/apps/plugins/puzzles/html/tracks.html b/apps/plugins/puzzles/html/tracks.html
deleted file mode 100644
index afabed37ac..0000000000
--- a/apps/plugins/puzzles/html/tracks.html
+++ /dev/null
@@ -1,19 +0,0 @@
-Tracks
-<p>
-Complete the track from A to B so that the rows and
-columns contain the same number of track segments as are indicated in the
-clues to the top and right of the grid. There are only straight and
-90-degree curved rail sections, and the track may not cross itself.
-<p>
-Left-click on an edge between two squares to add a track segment between
-the two squares. Right-click on an edge to add a cross on the edge,
-indicating no track is possible there.
-<p>
-Left-click in a square to add a colour indicator showing that you know the
-square must contain a track, even if you don't know which edges it crosses
-yet. Right-click in a square to add a cross indicating it contains no
-track segment.
-<p>
-Left- or right-drag between squares to lay a straight line of is-track or
-is-not-track indicators, useful for filling in rows or columns to match the
-clue.