Bug 1069490 - Part 1: Add columnNumber to ConsoleEvent and ConsoleStackEntry. r=bz
Bug 1069490 - Part 2: Add columnNumber to nsIStackFrame and set in JSStackFrame. r=bz
Bug 1069490 - Part 3: Set columnNumber when processing console messages. r=bz
Bug 1069490 - Part 4: Update tests. r=past