adding Yelim's game
Merge pull request #478 from waterbearlang/add_game_example

adding Yelim's game
fixes #483
Merge pull request #484 from waterbearlang/483_convert_ask_block

fixes #483
Added tic-tac-toe example
Merge pull request #490 from whleung/master

Added tic-tac-toe example
issue 487: Enable removing a blcok from right-click menu

tested against local server:
 - clicking 'Delete' removes the block from script blocks and from script text
 - clicking 'Delete' after 'Cut' doesn't affect the pasteboard
 - 'Redo' and 'Undo' work as expected
Merge pull request #493 from waterbearlang/487_delete

issue 487: Enable removing a blcok from right-click menu
minor layout fixes
Merge branch 'master' of https://github.com/waterbearlang/waterbear into test_layout
fixes #488 cutting off at the bottom