16015: Add API and implementation for delete-to-beginning (^U). r=slamm,rhp
490: Insert formatting newlines when inserting new nodes. r=rhp
git-svn-id: svn://10.0.0.236/trunk@56743 18797224-902f-48f8-a5cc-f745e15eee43
r=dcone
For this part of the fix, removed a precondition check for a null input param. It's legal (and necessary) here.
git-svn-id: svn://10.0.0.236/trunk@56506 18797224-902f-48f8-a5cc-f745e15eee43