Support for widths in multi images.
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revert rails version to 4.0.3 stable and previous gemfile.lock dependency versions
revert jquery-ui requires to 4.2.0 syntax
Merge pull request #982 from code-dot-org/rails-edge-revert

Rails edge revert
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Match/multi: scroll button higher, autoscroll to submit for error, and three items at top with width support.
Merge branch 'multiwidth' into finished
add draw_*_by_constant blocks to Artist level-builder toolbox
convert xml definitions to heredoc style
Removed feedback (hints) from Dashboard after adding to Blockly.
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add environment prerequisite to .script rake file task
Merge pull request #983 from code-dot-org/draw_by_constant_toolbox

add draw_*_by_constant blocks to Artist level-builder toolbox
A little extra room for match/multi slide to submit button.
Merge branch 'finished' of github.com:code-dot-org/dashboard into finished
add header text for edit blocks mode
skip instructions popup in edit blocks mode
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Merge branch 'finished' of github.com:code-dot-org/dashboard into finished
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