TemplatePopup - WMS support

[adube]

Currently, the TemplatePopup widget in GeoPrisma doesn't support WMS. In fact, its code source doesn't, but the original demo does :

 http://ec2-72-44-60-52.compute-1.amazonaws.com/mgdemo/geoext/examples/custombubble.html

We need to update the code in GeoPrisma.

[fgagnon]

This patch mostly include changes made by the original author. A new widget option (serviceType) was added to specify the required mode.

In addition to the original code, necessary resources are added to the GetFeatureInfo? request.

Currently, only one instance of the widget is possible, and the latter is locked into a single mode. As such, simultaneous use of WMS and WFS layers is not currently possible. The sample was modified to provide an example based on the WMS mode instead of the WFS mode.

This patch requires #349 to work correctly with QueryOnClick?.

[fgagnon]

Add WMS support

[adube]

Fixed in r1200.