Proportional-width sidebar support

- added a option to define a sidebar percent-width.

git-svn-id: https://plugins.svn.wordpress.org/standard-widget-extensions/trunk@798957 b8457f37-d9ea-0310-8a92-e5e31aec5664
delete an unnecessary CSS class

- delete 'tor-rm'

git-svn-id: https://plugins.svn.wordpress.org/standard-widget-extensions/trunk@798958 b8457f37-d9ea-0310-8a92-e5e31aec5664