* 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
* Added pre-loaded blocks with import and export, squashed commit.
* Configure Options object
Allows user to configure the options object, see changes in the preview workspace, and export the options object (squashed commit).
* Nit changes to style.css
Workspace factory helps developers configure their workspace by allowing them to drag blocks into the workspace to add them to their toolbox.
Current features:
supports categories or a single flyout of blocks
updates a preview workspace automatically
imports toolbox XML already written
exports toolbox XML to a file
prints toolbox XML to the console
imports a standard Blockly category
supports shadow blocks (allowing the user to move shadow blocks and toggle between shadow blocks and normal blocks), disabled blocks, block groups
allows the user to add/move/delete/rename/color categories and separators.
