Don't disable run button on click
Add a reset callback
pass canvas
Merge pull request #597 from code-dot-org/artistFix

pass canvas
Merge pull request #596 from code-dot-org/dont_disable_run_button

Don't disable run button
Flip layout of repeat block
Merge pull request #598 from code-dot-org/flip_repeat_layout

Flip layout of repeat block
Make executionInfo maze only
have maze represent action as object instead of list
separate loop highlighting from infinity check. support steps with multiple actions
executionInfo unit test
group actions and highlight blocklyCore loops
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