footer does not scroll horizontally

[qhelix7]

For tables that require horizontal scrollbars, the footer does not scroll with the body (unless it is cloned from the header). The _bindScroll function just needs to check for a footer as well as a cloned footer:

if (settings.cloneHeadToFoot) { ...

needs to be changed to:

if (settings.footer || settings.cloneHeadToFoot) { ...

For consistency, you may want to check explicitely for boolean values -- like this line near the end of _setupFixedColumn:

if (settings.footer == true || settings.cloneHeadToFoot == true) { ...

Thanks for the good work!