Plugin "contentToAppend" throws an error.

[teckays]

When trying to append an element into the grid, the following error is thrown:
Uncaught TypeError: Object {selector} has no method 'filter'.

[brandpeter]

I noticed this when I passed a string as the argument instead of a JQuery selection. Try this in the format:
$('#container').freetile({contentToAppend: $('#newelement')});

[yconst]

contentToAppend should always be used with a jQuery object. It is in "selector" that you may have either strings or jQuery objects