1)changed to use the functionalities from 'refac_rename_var' to check which variable should be renamed; 2)bug fix with error message returned when the refactoring fails.
1)changed to use the functionalities from 'refac_rename_var' to check which variable should be renamed;
2)bug fix with error message returned when the refactoring fails.


tdb/wrangler,andrzejsliwa/wrangler,bsmr-erlang/wrangler,arcusfelis/wrangler,prowessproject/wrangler,arcusfelis/wrangler