Open and/or close the infowindow on mouse over/out

[codespacing]

The following changes will allow to open the infowindow on Mouseover event and close it on Mouseout event.

1. "openOnMarkerMouseOver": Determines if the info window will open on marker "mouseover" event. An internal listener is added to the Google Maps "mouseover" event which calls the "open()" method.

• Type: boolean
• Default: false

2. "closeOnMarkerMouseOut": Determines if the info window will close on marker "mouseout" event. An internal listener is added to the Google Maps "mouseout" event which calls the "close()" method.

• Type: boolean
• Default: false

[AbuHani]

Please merge into master, we need these events