Option to ignore dupes if they point to the same file

[ghost]

If #91 is implemented, we might end up with the problem of subsequent scans showing duplicates we have already processed. Therefore, a new option should be added to make dupeGuru ignore matches if the files point to the same file.

[ghost]

(from [3a4e8775b5bb]) [#92 state:fixed] Added an option to ignore duplicates hardlinking to the same file.
http://bitbucket.org/hsoft/dupeguru/changeset/3a4e8775b5bb/

[ghost]

(from [ccdfc7d5a983]) [#92 state:fixed] Added an action to delete duplicates and then create hardlinks to group ref.
http://bitbucket.org/hsoft/dupeguru/changeset/ccdfc7d5a983/

[ghost]

Oops, linked in the wrong ticket in my commit...