docs($timeout): minor cleanup

Added a comma separator in the statement
Removed the word the from the statement
Used whose instead of who's in the following statement
Italicized false in the statement
Used a comma separator in the statement
feat(scenario): adds mousedown and mouseup event triggers to scenario

Added mousedown and mouseup event triggers to scenadio dsl 'element' expression.
Added mousedown and mouseup to the custom jquery trigger method to generate real events.