Improve TempLiftFile code
Improve TempLiftFile code

* This may fix the linux test failures by removing
  an unnecessary move of an empty file.
* Use RobustFile for writing as well

ermshiperete/libpalaso,ermshiperete/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso,gmartin7/libpalaso,ermshiperete/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,sillsdev/libpalaso,gmartin7/libpalaso,gmartin7/libpalaso