* Import lists and variables from SB2
* Switch to Variable and List objects
* Add Clone.lookupOrCreateVariable, Clone.getVariable, Clone.setVariable
* Add (get, set, change) variable blocks.
* Copy variables and lists on clone instantiation
* Move variable options closer to blocks
* Add list primitives
* Move variable and lists storage to `Target` instead of `Clone`
* Move _computeIndex to a Cast function
* Rename `getList` -> `getListAsString`
* Renames renames
* Remove extra check in Cast.isNaN
* Provide property to Clone to distinguish "original" clones
* Provide method to clone a clone's properties
* Don't report clones in the UI target list
* Add target info to Thread
* Allow hats to skip clones (for green flag)
* Green flag skips clones
* Implement "create clone" and hat
* Pass the runtime to sprites and clones (for start hats)
* Clone disposal; trigger hats after drawable initializes.
* Separate stop threads for target; fix handling of stop button
* Remove extraneous `skipClones` property
* Add global clone limit
* Don't allow a non-clone to delete itself.
* Rename `cloneClone` -> `makeClone`
* Variable updates in runtime.js
* Synchronous drawable initialization (until we put it back to promises)
* Remove Fallback Project
* Added A Newline and Removed Fallback Project
* Made The SB2 Project Import Field Fit In More With All Other Textboxes
* Better Description Of SB2 Import Field
* Oops!
* The XML Import Area Doses Not Need To Be Resizable!
* That Didn't Work As Planned
* Now it won't rezize
* Added SB3New
* Add Code For SB3New
* Better 404
* Indentation
* NodeJS complains about quotes
* Moved And Renamed SB3New
* Renamed Refrences
* Prefix With ./
* Typo
* Newline Fix
* Scratch Cat By Default!
* Single Quotes And Max Legth Fixed
* Better Comment Above loadProject
* Move newProject to index.js
* Added Dependincies to index.js
* Deleted newProject.js
* Removed Unneeeded Semicolon
* @param {?string}
* Added SVG For Scxratch Cat
* Now Uses Scratch Cat Offline (REQUIRES PULL REQUEST MADE TO SCRATCH-RENDER TO BE MERGED OR IT WILL NOT WORK)
* Added Stage PNG
* Added Stage Creation
* Fix Sizing Issues
* Import And Compatibility With Less Hacky Image Import (Scratch-Render)
* Import And Compatibility With Less Hacky Image Import (Scratch-Render)
* Fixed Line Length
* Added Navigation Bar
* Added CSS For Drop Down Menus
* Nicer Scale
* Nicer Dropdowns
* Remobved Dropdown CSS (It Didn't Work)
* Add Scratch Player Bar CSS
* Add Scratch Player Bar HTML
* Fill out color utilities
* Amend Color.decimalToHex name
* Add `Cast.toScaledRgbColor`
* Add touching color, color touching color blocks
* Fix scale of Cast.toRgbColor
* Fix format of colors to use renderer-style lists
* Update `Color.decimalToRgb`
* Lint self
* Strip out old script glowing in thread management
* Add new tracking mechanism for glowing scripts
* Track parents and use them to determine script glows
* Use top-block for a thread if there's nothing on the stack
* Remove `console.log`
* Add `Clone.prototype.getCostumeIndexByName`, keep in range
* Add basic costume primitives from Scratch 2.0
* Add costume getter block
* Add properties and methods for distinguishing stage and sprites-vs-clones
* Add backdrop-related looks blocks
* Fix up "switch to backdrop" to be working
* Costume/backdrop reporters are 1-indexed
* Fire "when backdrop switched" hats
* Cut cloning helpers for a separate PR
* Disable many blocks on the stage
* Refactor into _setCostumeOrBackdrop; implement switch backdrop and wait
* Fire hats even when backdrop unchanged
* Fix SB2 variable imports!
* Fix expectedArg field types
* motion_pointindirection uses math_angle
* Fix "think for secs" expected input
* Add handling for empty input case (empty if-else, for example)
* Fix opcodes for if_else, repeat_until, set tempo
* Specialized number fields for SB2 import
* Convert color picker numbers to hex in SB2 import
* KEY_OPTIONS -> KEY_OPTION
* Backdrop blocks get BACKDROP
* Update toolbox XML to match naming changes
* Merge in math_angle case
* Move color converter to its own utility
* Fix merge conflicts
* Add negative color check.
* Fix keyoptions naming
* Pen JSON tweak post-scratch-blocks update
* Always add `next` to block representation
* Add `shadow` property to inputs, to maintain obscured shadows
* Create obscured shadows in SB2 import
* Add XML import of obscured shadows
* Alias SB2 shadow inputs to block inputs
* Add shadow to inputs on "delete inputs" test
* Add a small test to ensure obscured shadows are preserved
* Add more obscured shadow tests
