[MOD] bootstrap class for breadcrumbs

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@50394 b456876b-0849-0410-b77d-98878d47e9d5
[MOD] Moving "Use excerpt" to general settings tab (it is a functionality, not a display option), making blog title required, adjusting breadcrumb class for bootstrap

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@50396 b456876b-0849-0410-b77d-98878d47e9d5