Removed the btn tags from the service links

git-svn-id: file:///var/www/svn/anahita/connect/branches/search@16976 a933e228-e664-4d3f-8241-49479697c698
uses the com_share interface for sharing across different services

git-svn-id: file:///var/www/svn/anahita/connect/branches/search@17024 a933e228-e664-4d3f-8241-49479697c698