1 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
2 EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
3 EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
4 When a user puts the caret at the very beginning of a blockquote and hits backspace, if the line before the blockquote is empty, the blockquote should just move up.
6 | style="margin: 0px; padding-left: 25px; border-left: 3px solid blue; color: blue;"
10 | "<#selection-caret>foo"