EranMes: Fixing issue 1950, hover broken on Firefox 4 / Linux. Reverting to the default behaviour, where the middle of the element will be used as default coordinates if no coordinates were specified.
EranMes: Fixing issue 1950, hover broken on Firefox 4 / Linux. Reverting to the default behaviour, where the middle of the element will be used as default coordinates if no coordinates were specified.

git-svn-id: 4179480af2c2519a5eb5e1e9b541cbdf5cf27696@12656 07704840-8298-11de-bf8c-fd130f914ac9

winhamwr/selenium,winhamwr/selenium,winhamwr/selenium,winhamwr/selenium,winhamwr/selenium,virajs/selenium-1,winhamwr/selenium,virajs/selenium-1,virajs/selenium-1,virajs/selenium-1,virajs/selenium-1,virajs/selenium-1,virajs/selenium-1,virajs/selenium-1,winhamwr/selenium,virajs/selenium-1,winhamwr/selenium