* Some options stuff changed
* Finished changes to options, including moving readonly to toop, fixing zoom errors, indenting suboptions, generating an options string, getting category options automatically, and making max blocks clearer, and having number inputs
* Added null check and nit line length
* Fixed bug of open flyout not updating by closing flyout, also changed shadow block editing UI to be a block that changes between add shadow and remove shadow
* Removed unncessary CSS rule
* Fixed marking shadow blocks so keeps warnings when switching between categories
* Done with variable and procedure block checks
* Used setShadowDom instead of shadowDom_, and nit changes in wfactory init
* Fixed bug of disable div covering whole screen
* Made workspace factory toolboxes take up height of screen, made workspce options properly scrollable, fixed being able to accidentally see Block factory some times, made Exporter and workspace factory scrollable if necessary
* Nit alphabetize css rules
* Fixed display none problems for Block factory, making it so that it can be hidden properly
* Nit css style
* disabled disconnected blocks in block factory
change to block def and also warn user
fixed bug and renamed math_foo
* clearUndo upon opening a saved block, change alert messages that use ok
* removed warning for unsaved blocks. in separate CL
* fix bug and make the blank option clickable
* generate block selector with checkboxes
working click handler
updated block exporter view and controller to work with new UI
select a block by clicking on the option--not just checkbox
renamed selectorWorkspace and fixed checkbox selecting bug
adding used blocks works
added and cleaned up css, removed extra exporter controller function, nit comment
simplified code
* style
* does not clear selected blocks upon tab switch
* added tooltips to buttons, reworded some buttons
* remove console.log statement and clarify this.selected in blockoption
* removed console log & nit comment
* Some UI changes made
* CSS changes
* Done with UI tweaks
* Changing arrow key event listeners, also changing category header in category list
* Fixed bug with error on updating toolbox with read only
* Changes to factory.css and workspacefactory view
* Bug fixes and UI changes and refactoring to have enableKeyEvents in wfactory controller
* Uncommented catch
* Changes to app_controller.js to use constants, other nit changes
* Nit line breaks
* addAllUsedBlocks in exporter works when you hand set the instance variable.
added click handler for export button (which got lost in refactor).
saveStateFromWorkspace on tab switch
fixed bug in deselect block in exporter; added warning alert for add all used blocks
* nit line
* not warning for standard block types
* switch block factory buttons, clarify exporter helper text,rename block selector
* add space between navigation bar and content. hide toolbox content.
* nit space
* moved helper text out of the columns and moved currently selected blocks into export settings
* Added block library category to toolbox workspace in workspace factory and update it each time user switches to workspace factory
* Added whitespace to end of index.html
* Bug fixes for convertShadowBlocks and updateState
* Last part of bug fix for adding separators
* Can import blocks in JSON and Javascript to generate new category in toolbox workspace
* Added try/catch to file reading
* Added comment to getDefinedBlocks in generator and changed name
* Use random color for imported category and use different call to
update toolbox
* Nit removed extra line
