Additions and changes to Blockly for France-IOI.

Requires buttonsAndMessages from bebras-modules for variable prompts.

Block text_eval requires acorn and the associated utility acorn-walk; they're both available in the bebras-modules repository as well.

Include the file dist/fioi-blockly.min.js after including Blockly javascript files, and before using Blockly.

If you modify the source, launch the command gulp to recompile.

Blocks to handle dictionnaries.

• Block dict_get: set element at index
• Block dict_get_literal: set element at index
• Block dict_keys: get the list of keys
• Block dicts_create_with: create a dictionnary

Blocks to handle 2D and 3D tables.

Blocks to handle inputs from stdin.

• Block input_num: read an integer
• Block input_char: read a single character
• Block input_word: read a word (delimited by whitespaces)
• Block input_line: read a line

• Block lists_append: append an element to a list
• Block text_print_noend: print some text without a newline at the end
• Block text_eval: allow user to input an expression to be evaluated, for instance list[x+2]*5

• Block logic_compare: use the standard notations for blocks instead of special characters (for instance, != instead of ≠)

• Allow only names starting with [a-zA-Z_].
• Default name: "element"

• Repeat blocks: start with 0
• Python procedures: stop global variables