added existing examples to jsduck (with screenshots)
Same approach for tree theme specific css as used for popup
Add comment about including css in the API docs
Merge pull request #263 from bartvde/cssfixes

Same approach for tree theme specific css as used for popup (r=@marcjansen)
Merge pull request #258 from hutzelknecht/master

This PR brings the Examples in http://geoext.github.io/geoext2/ to JSDuck on http://geoext.github.io/geoext2/docs/.