small fixes in the widget

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/aw_weather/trunk@83424 735d13b6-9817-0410-8766-e36946ffe9aa
added icon 

git-svn-id: https://svn.typo3.org/TYPO3v4/Extensions/aw_weather/trunk@83425 735d13b6-9817-0410-8766-e36946ffe9aa