made TracePoints#remvoeAll to return a promise
Added remove all method to traclsit box

The new method will unselect all of the selected traces.
made TracePoints#remvoeAll to return a promise
Added remove all method to traclsit box

The new method will unselect all of the selected traces.
fix merge conflict
Merge pull request #106 from dzautner/fix-traces-remove-all

Fix traces remove all