The Input class has been given a minor refactor to tidy things up. Specifically:
    * pointerN are aliases to backed pointers[N-1] array. This simplifies (and increases the efficiency of) looping through all the pointers when applicable; also eliminates pointer-existance checks Removes various hard-coded limits (added MAX_POINTERS); changed maxPointers default
    * Removed some special-casing from cases where it did not matter
    * Removed === false/true, == usage for consistency, changed missing value check to typeof, etc.
    * Updated documentation for specificty; added @public\@protected
    * @deprecated currentPointers due to odd set pattern; totalCurrentPointers is more appropriate.
(thanks @pnstickne #1283)