new code first checks if the destination file exists and matches md5 sum with the source file. if the sums match file logged as present and no copy occurs.
this PR also corrects a typo in one of the earlier yaml test files when option 1 and option 2 for the source files was the same.
closes issue #15
new code first checks if the destination file exists and matches md5 sum with the source file. if the sums match file logged as present and no copy occurs.
this PR also corrects a typo in one of the earlier yaml test files when option 1 and option 2 for the source files was the same.