Version 1.2.1 released

• fixed a bug where the "show" and "hide" methods were not accepting a jQuery selector as per documentation, but a single element; thanks to Martin for reporting;
• fixed a bug with the "content" property, where its value was not used unless the "title" attribute was also set on the element the tooltip was attached to; thanks to Phill for reporting;
• added a new "default_position" property useful if you want the tooltips to be positioned, by default, below the elements they are attached to and above only if there isn't enough space below; before, tooltips were shown by default above the elements they were attached to and below only if there wasn't enough above; thanks to Sebastian Popa for suggesting;