MAPSTORE-9 add qr code support for maps
MAPSTORE-9 fixed compatibility with IE8 and previous
Feature grid improvements

* Add `exportFormats` and `exportFormatsConfig` options to this widget.
* Add images and styles for the new exports
* Minor fix on Circle spatial selector.

You can test it adding the feature grid with this configuration:

```
	    {
		  "ptype": "gxp_featuregrid",
		  "featureManager": "featuremanager",
		  "outputConfig": {
			  "id": "featuregrid",
			  "title": "Features"
		  },
		  "outputTarget": "south",
		  "exportFormats": ["CSV","shape-zip","excel", "excel2007"]
	    }
```
MAPSTORE-11 add qrcode in home page
Feature grid improvements

* Export action as window by default
* Es/en translations for new options
Merge branch 'master' of github.com:geosolutions-it/MapStore
MAPSTORE-11 site configurations and fixes
Merge pull request #336 from alediator/download_formats

Feature grid improvements
fixed labels in qr code windows
merged site fixes
Improvements for the AddLayers's plugin in order to manage report and directly add wms. Close #342.
#342, Small fix to the embedded template properties.
#342, Cleaning up the embedded template.