should be $scope.$broadcast instead of $scope.broadcast

+also remote $scope.$on('$destroy') listener since we don't need to
destroy any listeners any more (they're destroyed with the scope)
user regisration now works
add and enable connect-modrewrite for grunt

used to redirect to index.html to support html5mode=true in angular
enable html5mode in angular and set base href to "/"
show rotating refreshing icon when a feed is refreshing
styling for refreshing icon
broadcast events before refreshing and after, also allow refreshing by
passing url param
check refresh query param equals true before refreshing