typo error

- dialogbox: add support for position as an option parameter - treemap: add events treemap_startRendering, treemap_endRendering - tooltip: replace an attr() by a prop() and remove connectors for ie <7 - position: add stick edgePolicy support for center|middle|pixsel hPos|vPos

- new placeholder plugin

- first way to jquery 1.7 compatibility check

- clean up + bug correction