Here is the list of all bugs reported :
    1) The ModeHints doesn't works : "Error: INVALID_STATE_ERR: DOM Exception 11"
    2) JS_SETUP failed at start : Actual error : "-1", maybe other errors
    3) The function path_to_key() doesn't totally work, It bugs when I try to set
       2 modmask or 2 keys (like : <Control>+<Shift>+w+q). This function doesn't
       parse modkeys.

TODO:
    1) Bug of script.js
    2) Bug of script.js
    3) I must improve algoritm
