* Converts an array of commands to a string and then * an ArrayBuffer to send over the socket to the drone

* Closes and discards all the socket connections

* Checks document order of two siblings * @param {Element} a * @param {Element} b * @returns {Number} Returns less than 0 if a precedes b, greater

* Convenience method to call main for a define call that was put on * hold in the defQueue.

* Wrapper function for logging

* Constructs an error with a pointer to an URL with more information. * @param {String} id the error ID that maps to an ID on a web page. *

* Compute and return the score for a match with e errors and x location. * Accesses loc and pattern through being a closure. * @param {number} e